Abstract: New architectures for multicast switches, and other optical switches and splitters, that have substantially reduced insertion loss, crosstalk and better overall optical performance in comparison to existing optical switches and splitters. Optimized waveguide mesh layouts are used to substantially reduce the number of waveguide crossings, which reduces insertion loss. The reduction in the number of crossings also reduces the complexity of the mesh and provides better crossing angles to reduce crosstalk and other issues. Instead of crossing all of the waveguides connected between splitter outputs and switch inputs, the waveguides are crossed in sets of waveguides.

Abstract: Embodiments of the present disclosure are directed towards a micro-electromechanical system (MEMS) sensing device, including a laser arrangement configured to generate a light beam, a first waveguide configured to receive and output a first portion of the light beam, and a second waveguide having a section that is evanescently coupled to the first waveguide and configured to receive and output a second portion of the light beam. The section of the second waveguide is configured to be movable substantially parallel to the first waveguide, wherein a movement of the section of the second waveguide may be caused by an inertial change applied to the sensing device. The movement of the section may cause a detectable change in light intensity between the first and second portions of the light beam. Based on the detected change, the inertial change may be determined. Other embodiments may be described and/or claimed.

Abstract: The invention taught herein provides a method, device and system for modulating or switching electromagnetic radiation by controlling a state of the radiation, such as a polarization state. Radiation is directed at a reflective or transmissive structure, such that the radiation is incident on the structure. The structure includes a property that can be dynamically switched between two configurations, one of which is asymmetric and is configured to modify the polarization characteristic of the radiation. The dynamically configurable structure can be combined with polarization components to achieve modulation. Embodiments suitable for mode-locking a laser and for cavity dumping a mode-locked laser are also disclosed.

Abstract: The discloser provides a multi-input and multi-output optical switch capable of switching over all WDM wavelengths. An optical switch according to one embodiment includes: an optical demultiplexing element (3) that demultiplexes an optical signal from at least one input port into individual wavelengths; a first optical deflection element (5), which deflects an incident optical signal, that deflects the wavelength-separated optical signal incoming from the optical demultiplexing element to change a traveling direction for each wavelength to a switch axis direction perpendicular to a wavelength dispersion axis direction; a second optical deflection element (8) that deflects the optical signal incoming from the first optical deflection element to change the traveling direction to the switch axis direction for output to at least one of the output ports; and an optical multiplexing element (10) that multiplexes the optical signal with the different wavelengths incoming from the second optical deflection element.

Abstract: A micro-electro-mechanical systems (MEMS) mirror array can be constructed using sub-dies that each includes two or more MEMS mirrors. In some implementations, an optical cross-connect system includes a first MEMS mirror array that includes first mirror units. Each first mirror unit can include a first substrate and two or more first MEMS mirrors supported by the first substrate. Each first substrate can be independent from each other first substrate. The cross-connect system can include a second MEMS mirror array that includes second mirror units. Each second mirror unit can include a second substrate and two or more second MEMS mirrors supported by the second substrate. Each second substrate can be independent from each other second substrate.

Abstract: A wavelength converter includes first silicon waveguides and second silicon waveguides intersecting the first silicon waveguides to form an arrayed waveguide. The arrayed waveguide receives optical data signals at the same wavelength at a first input and optical pump signals at different wavelengths at a second input. Microring resonators evanescently couple different ones of the first silicon waveguides to different ones of the second silicon waveguides. Each microring resonator is tuned to the wavelength of the optical data signals or one of the wavelengths of the optical pump signals, so that different combinations of the optical data signals and the optical pump signals are provided at an output of the arrayed waveguide. A non-linear optical media converts the wavelength of each combined optical signal at the output of the arrayed waveguide to yield wavelength converted signals each having a new dedicated wavelength.

Abstract: An optical semiconductor device includes a waveguide that an input light to be inputted, a ring modulator optically coupled with the waveguide, a first ring resonator optically coupled with the waveguide and having an optical path length smaller than an optical path length of the ring modulator, a second ring resonator optically coupled with the first waveguide and having an optical path length larger than the optical path length of the ring modulator, a heater arranged adjacent to the ring modulator, the first ring resonator and the second ring resonator, a first photodetector monitoring a light power in the first ring resonator, a second photodetector monitoring a light power in the second ring resonator, and a controller controlling the heater so that a resonance wavelength of the ring modulator agrees with a wavelength of the input light, based on signals detected by the first and second photodetectors.

Abstract: A wavelength-selective cross-connect (WSXC) device having N input ports and M output ports and configured to route any set of one or more carrier wavelengths from a corresponding input port to any selected output port. In one embodiment, the WSXC device includes a diffraction grating and a beam-steering device optically coupled to each other and to the input/output ports so that each of the carrier wavelengths traverses the diffraction grating and the beam-steering device two or more times en route from the respective input port to a designated output port. Various unfolded configurations of the WSXC device are also disclosed.

Abstract: A large-area transmissive type optical image modulator, a method of manufacturing the same, and an optical apparatus including the transmissive type optical image modulator are provided. The large-area transmissive type optical image modulator includes: a base substrate; a first expitaxial layer formed on the base substrate; a second expitaxial layer formed on the first expitaxial layer; a first electrode formed on the first expitaxial layer and spaced apart from the second expitaxial layer; a second electrode formed on the second expitaxial layer; and a transparent substrate covering the second expitaxial layer and the second electrode, wherein the base substrate includes a through hole corresponding to a light emitting area, and the first expitaxial layer may include an n-type or p-type doping material.

Abstract: A high density, low power, high performance information system, method and apparatus are described in which perpendicularly oriented processor and memory die stacks (130, 140, 150, 160, 170) include integrated deflectable MEMS optical beam waveguides (e.g., 190) at each die edge to provide optical communications (182-185) in and between die stacks by supplying deflection voltages to a plurality of deflection electrodes (195-197) positioned on and around each MEMS optical beam waveguide (193-194) to provide two-dimensional alignment and controlled feedback to adjust beam alignment and establish optical communication links between die stacks.

Abstract: A high density, low power, high performance information system, method and apparatus are described in which a laser source (213) on a first die (210) generates a source light beam of unmodulated monochromatic coherent light (281) for distribution via optical beam routing structures (e.g., 214/214a, 224/224a, 234/234a) to a plurality of receiving die (220, 230), each of which includes its own modulator (e.g., 223, 233) for optically receiving at least a portion of the source light beam (281a, 281b) from the first die and generating therefrom an output source light beam of modulated monochromatic coherent light (291, 292) which is encoded at said modulator in response to electrical signal information.

Abstract: An optical cross-connect apparatus includes: a plurality of optical cross-connect portions each having an inter-node connection input port and an inter-node connection output port respectively connected to each of the plurality of the inter-node connection optical fibers, an internal connection input port, and an internal connection output port, wherein for each of the plurality of the optical cross-connect portions, the internal connection output port of a predetermined optical cross-connect portion is directly connected to the internal connection input port of another optical cross-connect portion, or the internal connection output port of a predetermined optical cross-connect portion is directly connected to the internal connection input port of another optical cross-connect portion and is indirectly connected via the another optical cross-connect portion to the internal connection input port of yet another optical cross-connect portion.

Abstract: A scalable, modular optical mesh patch panel includes a multi-slot receptacle configured to receive at least one of a first modular optical interconnect block and a second modular optical interconnect block that enable connectivity among one or more add-drop modules and/or respective degrees of a reconfigurable optical add drop multiplexer node (ROADM).

Abstract: An optical apparatus, comprising a wavelength selective switch, the wavelength selective switch including: one or more planar lightwave circuits and a plurality of optical beam steering assemblies. Each one of the planar lightwave circuits have at least one arrayed waveguide grating located thereon.

Abstract: A transition device for an optical fiber connection system adapted to interconnect a trunk cable with a plurality of transceivers includes: a first set of at least four optical fibers, each of the optical fibers having a trunk end and a transceiver end; a single trunk end terminal having a plurality of trunk ports arranged in a first row, each port connected with a respective one of the set of optical fibers at its trunk end, wherein a first axis of symmetry divides the ports; and a plurality of transceiver end terminals, each of the transceiver end terminals having at least one couplet of transceiver ports, each of the couplets of transceiver ports receiving a respective couplet of the set of optical fibers at their transceiver ends.

Abstract: Example embodiments of the present invention relate to An optical node comprising of at least two optical degrees; a plurality of directionless add/drop ports; and at least one wavelength equalizing array, wherein the at least one wavelength equalizing array is used to both select wavelengths for each degree, and to perform directionless steering for the add/drop ports.

Abstract: A compound optical circuit switches and methods are disclosed. Two or more 1st-tier switches may be coupled to one or more 2nd-tier switches. Each of a plurality of input ports may be connected to a respective input of one of the 1st-tier switches and each of a plurality of output ports may be connected to a respective output of one of the 1st-tier switches. Each connection between an input port and an output port connected to the same 1st-tier switch may be made within the 1st-tier switch. Each connection between an input port and an output port connected to two different 1st-tier switches is made along a respective connection path through the 1st-tier switch connected to the input port, through a selected 2nd-tier switch, and through the 1st-tier switch connect to the output port.

Abstract: An optical switch platform allowing dual and/or multicast optical switch geometries is disclosed. Only two waveguide arrays are used, one for the input, and one for the output. Multi-row waveguide array(s) can replace individual multiple single-row waveguide arrays for optical switch configurations employing a beam director configured to dispose a plurality of input optical beams in a multi-row pattern of optical beams at an angle-to-offset (ATO) optical element.

Abstract: An optical switch fabric, including: a first set of horizontal optical waveguides receiving a plurality of wavelengths; a plurality of wavelength-selective drop optical switches associated with the first set of horizontal optical waveguides, wherein the plurality of wavelength-selective drop optical switches are each configured to drop a selected wavelength from a horizontal optical waveguide of the first set of horizontal optical waveguides to an associated vertical optical waveguide of a plurality of vertical optical waveguides; and a plurality of controllable optical switches associated with the plurality of vertical optical waveguides, wherein the plurality of controllable optical switches are each configured to direct a selected wavelength from a vertical optical waveguide of the plurality of vertical optical waveguides to a horizontal optical waveguide of a second set of horizontal optical waveguides, and wherein the second set of horizontal optical waveguides output a plurality of wavelengths.

Abstract: By steering wanted diffraction orders within a concentrated angular region and steering all unwanted diffraction orders outside that region, a wavelength selective switch achieves high port isolation and densely spaced ports. N inputs receive an optical signal. Optics spatially separate and direct wavelength channels from the signal. A phased array switching engine comprising cells steers a wanted diffraction order of each spatially separated wavelength channel from each cell at an angle within a concentrated angular region relative to the PASE, and steers all unwanted diffraction orders of spatially separated wavelength channels from cells outside the concentrated angular region. Optics direct each wanted diffraction order to one of N outputs in accordance with the steering of the wanted diffraction orders by the PASE. The concentrated angular region is defined by a largest and smallest steering angle wherein the largest steering angle is a margin less than the smallest steering angle.

Abstract: The disclosure describes implementations of an apparatus including a plurality of racks, wherein each rack houses a plurality of networking devices and each networking device includes a communication port. An optical circuit switch can be coupled to each of the plurality of communication ports in one or more of the plurality of racks, and a plurality of top-of-rack (TOR) switches can be coupled to the optical circuit switch. Other implementations are disclosed and claimed.

Abstract: A wavelength selective switch includes a light input/output unit that includes an input unit and an output unit of a wavelength multiplexed light arranged in a form of an array in a first direction, a light dispersing unit that receives the wavelength multiplexed light from the input unit and disperses the wavelength multiplexed light into signal wavelengths, a light condensing element that condenses the light dispersed into the signal wavelengths, and a light deflecting element array that deflects a signal light in the first direction and a second direction, that is orthogonal to the first direction, so as to switch the light of the signal wavelengths condensed by the light condensing element to a desired output unit.

Abstract: The present invention relates to a method for reconfiguration of an optical fiber distribution system (100). The system (100) comprises a patch panel (101). The patch panel (101) comprises subsets of adapters (103). Each adapter (103) is configured to receive an optical connector and provide optical connection to the connector when patched in the adapter (103). The patch panel (101) further comprises subsets of parking adapters (111). Each parking adapter (111) is configured to park an optical connector. The system (100) further comprises a first connectorized fiber cable (105) terminated in a first end with a first optical connector. The first optical connector is connected to a first adapter (103). The first optical connector is moved from the first adapter (103) to a first parking adapter (111). Each subset of parking adapters (111) is positioned in a predetermined distance from the subset of adapters (103).

Abstract: Telecommunications switches are presented, including expandable optical switches that allow for a switch of N inputs×M outputs to be expanded arbitrarily to a new number of N inputs and/or a new number of M outputs. Switches having internal switch blocks controlling signal bypass lines are also provided, with these switches being useful for the expandable switches.

Abstract: As described herein, a network device includes an optical circuit switch to perform circuit switching. The network device also has a plurality of removable line cards, each of which includes a packet switch. A switching manager automatically reconfigures the optical circuit switch based on a configuration of the removable line cards to maintain a guaranteed packet switching bandwidth between active line cards.

Abstract: Embodiments of the present invention are directed to optoelectronic network switches. In one embodiment, an optoelectronic switch includes a set of roughly parallel input waveguides and a set of roughly parallel output waveguides positioned roughly perpendicular to the input waveguides. Each of the output waveguides crosses the set of input waveguides. The optoelectronic switch includes at least one switch element configured to switch one or more optical signals transmitted on one or more input waveguides onto one or more crossing output waveguides.

Abstract: An adapter block constructed to mount to more than one mounting configuration of a telecommunications panel. The adapter block including a housing constructed to slide mount to a panel, and pivot mount to a panel from either a front or a rear of the panel. The housing including flexible levers that provide a snap-fit connection to secure the adapter block relative to the panel in each of the mounting configurations. The adapter block providing access to cable terminations of the block in each of the mounting configurations.

Abstract: Embodiments herein include a resilient add-drop module for use in one of multiple access subnetwork nodes forming an access subnetwork ring. The module comprises a dual-arm passive optical filter and a cyclic arrayed waveguide grating (AWG). The dual-arm passive optical filter is configured to resiliently drop any wavelength channels within a fixed band uniquely allocated to the access subnetwork node from either arm of the access subnetwork ring and to resiliently add any wavelength channels within the fixed band to both arms of the access subnetwork ring. The cyclic AWG is correspondingly configured to demultiplex wavelength channels dropped by the dual-arm filter and to multiplex wavelength channels to be added by the dual-arm filter. Configured in this way, the module in at least some embodiments advantageously reduces the complexity and accompanying cost of nodes in an optical network, while also providing resilience against fiber and node failures.

Abstract: Compound optical circuit switches and methods are disclosed. Two or more 1st-tier switches may be configured to make selectable optical connections between a plurality of 1st-tier inputs and a plurality of 1st-tier outputs. Each 1st-tier switch may include input and output power meters to measure optical powers of signals received at the 1st-tier inputs and optical powers of signals output from the 1st-tier outputs, respectively. At least one 2nd-tier switch may include plural 2nd-tier inputs optically connected to respective 1st-tier outputs, plural 2nd-tier outputs optically connected to respective 1st-tier inputs, and plural 2nd-tier rotatable mirror elements to make selectable optical connections from the 2nd-tier inputs to the 2nd-tier outputs. A 2nd-tier switch controller may control positions of at least some of the 2nd-tier mirror elements based on optical power measurement data from the input power meters and the output power meters of the 1st-tier switches.

Abstract: A circuit switched optical device includes a first array of intersecting hollow waveguides formed in a first plane of a substrate. A second array of intersecting hollow waveguides is formed in a second plane of the substrate, and the second plane is positioned parallel to the first plane. An optical element within the first array selectively redirects an optical signal from the first array to the second array.

Abstract: An optical add/drop multiplexer including one or more optical drop multiplexers connected in free space or fused by optical fiber pigtails, a wavelength blocker with an input port connected to an output port of the optical drop multiplexer through the fusion of the fiber pigtails, one or more optical add multiplexers connected in free space or fused by fiber pigtails, a digital signal processor, an analog-to-digital signal converter, a digital-to-analog converter, and a plurality of electronic control and feedback loops for tuning and scanning an optical wavelength.

Abstract: An optical cross-connect switch having a fiber collimator array (FCA), a MEMS mirror array, and a folded 4F relay system. Each optical fiber in the FCA can work as an input fiber or an output fiber. The MEMS mirror array has individually tiltable mirrors, each mapped to a respective one of the optical fibers in the FCA. The folded 4F relay system is configured to image the FCA onto itself such that, for each input fiber, the tip of the fiber is imaged onto the tip of the intended output fiber. The MEMS mirror array can select the output fiber by (i) tilting the mirror mapped to the input fiber to cause light redirected by that mirror to impinge on the mirror mapped to the output fiber and (ii) tilting the mirror mapped to the output fiber to cause light redirected by that mirror to couple into the output fiber.

Abstract: Telecommunications switches are presented, including expandable optical switches that allow for a switch of N inputs×M outputs to be expanded arbitrarily to a new number of N inputs and/or a new number of M outputs. Switches having internal switch blocks controlling signal bypass lines are also provided, with these switches being useful for the expandable switches.

Abstract: An optical fiber switch (16) for alternatively redirecting an input beam (14) comprises a redirector (18) and a redirector mover (20). The redirector (18) is positioned in the path of the input beam (14) along a directed axis (344A). The redirector (18) redirects the input beam (14) so that a redirected beam (46) alternatively launches from the redirector (18) (i) along a first redirected axis (354) that is spaced apart from the directed axis (344A) when the redirector (18) is positioned at a first position (348), and (ii) along a second redirected axis (356) that is spaced apart from the directed axis (344A) when the redirector (18) is positioned at a second position (350) that is different from the first position (348). The redirector mover (20) moves the redirector (18) about a movement axis (366) between the first position (348) and the second position (350). The redirector mover (20) includes a stator component (320A) and a rotor component (320B) that moves relative to the stator component (320A).

Abstract: A wavelength selective switch according to the present invention includes at least one input port for inputting wavelength-multiplexed light, a dispersive element which receives the light from the input port, and disperses the received light, a light converging element which converges dispersed light which has been dispersed for each wavelength, a light deflecting member having a plurality of reflecting optical elements which are capable of independently deflecting each dispersed light from the light converging element, and at least one output port which receives light which has been deflected by the light deflecting member. An area having a reflectivity higher than a central area of the reflecting surface is formed in at least a part of an end portion of the reflecting surface in the dispersive direction by the dispersive element.

Abstract: An optical de-multiplexer (de-MUX) that includes an optical device that images and diffracts an optical signal using a reflective geometry is described, where a free spectral range (FSR) of the optical device associated with a given diffraction order abuts FSRs associated with adjacent diffraction orders. Moreover, the channel spacings within diffraction orders and between adjacent diffraction orders are equal to the predefined channel spacing associated with the optical signal. As a consequence, the optical device has a comb-filter output spectrum, which reduces a tuning energy of the optical device by eliminating spectral gaps between diffraction orders of the optical device.

Abstract: A reconfigurable optical add/drop multiplexer and a reconfigurable optical add/drop multiplexing method are provided. The reconfigurable optical add/drop multiplexer comprises: an optical processing unit for receiving a first optical signal containing a plurality of optical channels, processing the first optical signal to generate a second optical signal which is a part of the first optical signal, and outputting the second optical signal; and a coherent detection unit for performing a coherent detection on the second optical signal so as to separate from the second optical signal an optical channel contained therein, and outputting the optical channel.

Abstract: New architectures for multicast switches, and other optical switches and splitters, that have substantially reduced insertion loss, crosstalk and better overall optical performance in comparison to existing optical switches and splitters. Optimized waveguide mesh layouts are used to substantially reduce the number of waveguide crossings, which reduces insertion loss. The reduction in the number of crossings also reduces the complexity of the mesh and provides better crossing angles to reduce crosstalk and other issues. Instead of crossing all of the waveguides connected between splitter outputs and switch inputs, the waveguides are crossed in sets of waveguides.

Abstract: A wavelength selective switch includes a wavelength dispersing element, a wavelength converging element, multiple transmission control elements, and a controller. The wavelength dispersing element performs wavelength dispersion of input signal light. The transmission control element divides input signal light into wavelength bands within a channel band and transmits or cuts off the divided input signal light. The wavelength converging element converges signal light having respective wavelengths produced from the transmission control elements for output. The controller controls a transmittance of the transmission control element of at least one of the low and high frequency sides in a channel band.

Abstract: Described herein is an optical switch (1), including 4 common port optical fibers (e.g. 3), disposed in a vertical y dimension, a wavelength independent beam splitter (5), a switching unit (7) and 16 add/drop optical fibers (e.g. 9), disposed in a horizontal x dimension. In one direction of operation, the common port fibers (3) project respective optical beams (e.g. 11) to beam splitter (5), which physically splits each optical beam (11) into a plurality of separate sub beams (e.g. 15). The sub beams (15) are focused by a lens (17) onto respective micro-electromechanical (MEMS) mirrors (e.g. 19) of switching unit (7). Mirrors (19) direct each said sub beam (15) along respective predetermined trajectories to thereby selectively couple the sub beams (15) to corresponding add/drop optical fibers (9). Corresponding operation occurs in the reverse direction, with add/drop fibers (9) acting as input ports and common port fibers (3) providing outputs.

Abstract: A tunable optical demultiplexer includes a control circuit and one or more heaters thermally coupled to waveguides of an optical demux. The control circuit is in signal communication with the one or more heaters and includes a processor coupled to a memory. The control circuit is configured to receive an optical channel group (OCG) identification signal and adjust the power delivered to the heaters in response to the OCG identification signal and based on parameter values stored in the memory. The optical demux outputs a plurality of optical signals at a corresponding one of a plurality of outputs. The transmission characteristics of the optical demux are varied depending on the amount of power delivered to the heaters. The varying of the transmission characteristics of the optical demux adjusts the spectral shifting of the plurality of wavelengths output by the optical demux.

Abstract: This invention discloses scalable and modular automated optical cross-connect devices which exhibit low loss and scalability to high port counts. In particular, a device for the programmable interconnection of large numbers of optical fibers is provided, whereby a two-dimensional array of fiber optic connections is mapped in an ordered and rule based fashion into a one-dimensional array with tensioned fiber optic elements tracing substantially straight lines there between. Fiber optic elements are terminated in a stacked arrangement of flexible fiber optic elements with a capacity to retain excess fiber lengths while maintaining an adequate bend radius. The combination of these elements partitions the switch volume into multiple independent, non-interfering zones.

Abstract: An optical repeater formed in an optical passive component passively relays an incoming multiplexed optical signal. The repeater has an optical decoder decoding the multiplexed optical signal, and an optical encoder encoding an optical signal from a termination unit connected to the repeater. The repeater further includes a first optical path switch outputting an incoming multiplexed optical signal to the optical decoder and outputting the optical signal delivered from the optical decoder, a second optical path switch outputting the optical signal coming from the first optical path switch to the termination unit, and a third optical path switch outputting the optical signal coming from the second optical path switch to the encoder and outputting the optical signal delivered from the encoder.

Abstract: A configurable optical communications system (100) for establishing point-to-point communications between multiple computer servers (160) coupled to a common midplane or backplane communications bus (132), wherein at least two of the servers include an optical input/output device (170) for sending and receiving an optical signal (112). The system further includes an optical communications pathway (140) that is configured to carry the optical signal, and at least two pivotable mirrors (150) located within the optical pathway and in-line with the optical input/output devices that are selectively orientated to direct the optical signal between the optical input/output devices to establish the point-to-point communication between the at least two servers.

Abstract: Embodiments of the present invention are directed to implementing high-radix switch topologies on relatively lower-radix physical networks. In one embodiment, the method comprises constructing the physical network (702) composed of one or more optical switches connected via one or more waveguides. A desired switch topology (704) is then designed for implementation on the physical network. The switch topology is then overlain on the switch network by configuring the optical switches and waveguides (706) to implement the switch topology on the physical network. The optical switches can be reconfigured following a transmission over the physical network and can be configured to implement circuit switching or packet switch.

Abstract: A bistable element (100) comprising: a multi-mode interference optical waveguide (1), has two ports on one edge face (1a) thereof, and has one port on the other edge face (1b) thereof; a first group of optical waveguides (2), and each of which is composed of two optical waveguides each having one edge face connected to each port arranged on the one edge face (1a) side of the multi-mode interference optical waveguide (1); and a second group of optical waveguides (3), and each of which is composed of one optical waveguide having one edge face connected to each port arranged on the other edge face (1b) side of the multi-mode interference optical waveguide (1). The multi-mode interference optical waveguide (1) has a saturable absorption region (22) where the absorption coefficient is reduced to cause the saturation of the amount of absorbed light when the intensity of incident light becomes high.

Abstract: An optical coupling structure includes an optical amplifier array configured to include a plurality of optical amplifiers arranged in an array direction, an optical fiber array configured to include a plurality of optical fibers arranged in the array direction, and an optical coupling system that optically couples the optical amplifier array and the optical fiber array, wherein, in a non-array direction orthogonal to the array direction, the optical coupling system optically couples beams of light signals to an end face of the optical amplifier array in parallel with a waveguide direction of the optical amplifiers, and optically couples the beams to an end face of the optical fiber array obliquely to the end face of the optical fiber array in the non-array direction.

Abstract: An optical module includes a first switch card (10) having a first optical connector, a second switch card (20) disposed on a side of the first switch card and having a second optical connector, a number of line cards (30) disposed on an opposite side of the first switch card, each of the line cards having a third optical connector, and an optical interconnect assembly having a single fourth optical connector (41) mated with the first optical connector, a single fifth optical connector (45) mated with the second optical connector, a number of sixth optical connectors (43) mated with the third optical connectors, respectively, a number of stacked first optical waveguides (44) connected with the single fourth optical connector and each of the sixth optical connectors, and a number of stacked second optical waveguides connected with the single fifth optical connector and each of the sixth optical connectors.

Abstract: A signal routing assembly accepts a first transmission signal at an input and outputs a substantial portion of the signal at a common port of the signal routing assembly. A second transmission signal is received at the common port and is routed through the signal routing assembly delivered to output of the signal routing assembly. Leakage signals from routing devices leaking the first transmission signal are terminated inside the signal routing assembly. Leakage signal from a divider/combiner are cancelled by reflect signal from at least one reflector device. A transmitter produces the first transmission signal and the signal routing assembly delivers this signal to the common port of the signal routing assembly. In full duplex operation, second transmission signals received at the common port are routed to the output to be applied to a receiver.

Abstract: An optical switching system is described. The system includes a plurality of interconnected wavelength selective switching units. Each of the wavelength selective switching units is associated with one or more server racks. The interconnected wavelength selective switching units are arranged into a fixed structure high-dimensional interconnect architecture comprising a plurality of fixed and structured optical links. The optical links are arranged in a k-ary n-cube, ring, mesh, torus, direct binary n-cube, indirect binary n-cube, Omega network or hypercube architecture.