Abstract: The present disclosure provides an optical fibre cable. The optical fibre cable includes a plurality of buffer tubes and a plurality of interstitial fillers in spaces between the plurality of buffer tubes. The plurality of interstitial fillers is arranged in spaces between the plurality of buffer tubes. The optical fibre cable may include a plurality of water swellable yarns. There is an optical fibre ribbon stack including a plurality of optical fibre ribbons. The plurality of optical fibre ribbons are stacked to form the optical fibre ribbon stack. The present disclosure provides a fire retardant optical fibre cable includes the plurality of buffer tubes and one or more numbers of interstitial fillers and includes at least one of a thermal resistant water blocking tape, a fire resistant water blocking tape and a Mica tape wrapped over the core of the fire retardant optical fibre cable.

Abstract: Provided is a phase modulator including an antenna pattern, a lower reflective layer spaced apart from the antenna pattern in a vertical direction, a spacer provided between the antenna pattern and the lower reflective layer, and a phase shift pattern included in the spacer, the phase shift pattern including a phase shift material.

Abstract: A high backscattering optical fiber comprising a perturbed segment in which the perturbed segment reflects a relative power such that the optical fiber has an effective index of neff, a numerical aperture of NA, a scatter of Rp?r(fiber) that varies axially along the optical fiber, a total transmission loss of ?fiber, an in-band range greater than one nanometer (1 nm), and a figure of merit (FOM) in the in-band range. The FOM being defined as: F ? O ? M = R p ? "\[Rule]" r ( fiber ) ? fiber ( NA 2 ? n eff ) 2 .

Abstract: Aspects and techniques of the present disclosure relate to fiber optic connectors with features that help eliminate the potential of a capillary effect or epoxy wicking. The fiber optic connector may include an epoxy tube with segments that define a pocket in an area that helps to prevent capillary action between components that are otherwise closely positioned.

Abstract: Provided here are: a mounting section having a light-emitting element for emitting an optical signal; a mounting section arranged alongside the mounting section and having a light-emitting element for emitting an optical signal that is different in wavelength from the optical signal; and an optical multiplexer having a filter for transmitting therethrough only the wavelength of the optical signal, a mirror for reflecting the optical signal transmitted through the filter, and a filter arranged alongside the filter, for transmitting therethrough only the wavelength of the optical signal, and for reflecting the optical signal reflected by the mirror and multiplexing it with the transmitted optical signal; wherein the light-emitting element is mounted in the mounting section to be displaced toward the light-emitting element from a center in a width direction across an emission direction of the optical signal.

Abstract: An assembly for pulling, pushing, or blowing a plurality of preterminated fiber optic cables of a multi fiber cable through a duct includes a sleeve, a rod configured to be coupled with the sleeve, and a plurality of dust caps. The sleeve is configured to receive to be coupled with a multi fiber cable and to permit a plurality of preterminated fiber optic cables of the multi fiber cable to pass through the sleeve, and the rod includes a first end configured to be coupled with the sleeve. Each of the plurality of dust caps is configured to be coupled with a ferrule of one of the preterminated fiber optic cables, and each of the plurality of dust caps is configured to be coupled with the rod, thereby coupling the preterminated fiber optic cables with the rod.

Abstract: Examples described herein relate to an optical resonating device. The optical resonating device includes a primary waveguide, a microring resonator, and a microring resonator photodiode. The primary waveguide allows a passage of an optical signal. The microring resonator is formed adjacent to the primary waveguide to couple therein a portion of the optical signal passing through the primary waveguide. Furthermore, the microring resonator photodiode is formed adjacent to the microring resonator to measure an intensity of the portion of the optical signal coupled into the microring resonator.

Abstract: A light pipe such as a fiber ribbon may be formed from fibers joined by binder such as extruded binder. The fiber ribbon or other light pipe may have bends. A light source may provide light to an input of a fiber ribbon that is guided by the fiber ribbon to a corresponding output. The output may be located in an interior portion of an electronic device or may be positioned so that light from the output exits the electronic device and illuminates external objects. The light source may have light-emitting devices on a substrate. The light-emitting devices may be vertical cavity surface-emitting laser diodes or other lasers and/or may be light-emitting diodes. Light-emitting devices may be arranged in discrete clusters corresponding to the locations of fiber cores in the fiber ribbon.

Abstract: To provide an optical signal processing device capable of reducing the crosstalk while narrowing the space between switch elements for downsizing, the optical signal processing device includes a plurality of input optical waveguides, a plurality of output optical waveguides, a plurality of optical waveguide elements arranged between the plurality of input optical waveguides and the plurality of output optical waveguides, and a connection optical waveguide. The connection optical waveguide positioned closely to the optical waveguide element is differentiated in propagation constant from the optical waveguide configuring the closely arranged optical waveguide element. The connection optical waveguide positioned closely to the optical waveguide element is a connection optical waveguide having one end or both ends connected to the optical waveguide element, or a connection optical waveguide having both ends not connected to the optical waveguide elements.

Abstract: A photonics package that incorporates a liquid crystal lens situated between a light source and a waveguide or output element of the package. The liquid crystal lens may focus or collimate light passing through it. This may be useful, for example, to focus light from a light source on or at an entry of a waveguide. Certain embodiments may include or incorporate routing or optical elements between the light source and the liquid crystal lens, and/or on a side of the lens opposite a side on which the light source is located.

Abstract: An optical cable is provided. The optical cable includes an outer cable body jacket and a plurality of optical fiber subunits. The optical fibers within each subunit are stranded relative to each other and are located within a thin subunit jacket. A plurality of unstranded optical fiber subunits are located within the cable jacket.

Abstract: In some embodiments, a data center optical communications system includes: a transmitter comprising a light source, wherein the light source is configured to provide light; an optical fiber operably connected to said transmitter and configured to receive light from the light source, wherein the optical fiber has a length L of 50 km or greater; a receiver configured to receive light from the optical fiber, wherein the receiver includes a detector for detecting the light, wherein the system has a power consumption of 15 W or less.

Abstract: A polymer waveguide and an electrical signal transmission method are disclosed. In a specific implementation, the polymer waveguide includes at least a section of transmission waveguide and a section of dispersion compensation waveguide. The transmission waveguide is connected to the dispersion compensation waveguide. Dispersion symbols of the dispersion compensation waveguide and the transmission waveguide are opposite.

Abstract: An optical input/output chiplet is disposed on a first package substrate. The optical input/output chiplet includes one or more supply optical ports for receiving continuous wave light. The optical input/output chiplet includes one or more transmit optical ports through which modulated light is transmitted. The optical input/output chiplet includes one or more receive optical ports through which modulated light is received by the optical input/output chiplet. An optical power supply module is disposed on a second package substrate. The second package substrate is separate from the first package substrate. The optical power supply module includes one or more output optical ports through which continuous wave laser light is transmitted. A set of optical fibers optically connect the one or more output optical ports of the optical power supply module to the one or more supply optical ports of the optical input/output chiplet.

Abstract: An optical waveguide structure. In some embodiments, the optical waveguide structure includes a semiconductor waveguide having a waveguide ridge, and a heater. The waveguide ridge may have a varying dopant concentration across its cross-section. The heater may include a first contact and a second contact, and the waveguide structure may include a conductive path from the first contact to the second contact, the conductive path extending through a doped portion of the waveguide ridge.

Abstract: A first portion of incoming light and a second portion of incoming light travel in opposite directions within a first optical waveguide. A ring resonator in-couples the first portion of incoming light and the second portion of incoming light from the first optical waveguide, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the ring resonator. A second optical waveguide is disposed to in-couple the first portion of incoming light and the second portion of incoming light couple from the ring resonator, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the second optical waveguide away from the ring resonator. One or more photodetector(s) are optically connected to receive the first portion of incoming light and the second portion of incoming light from the second optical waveguide.

Abstract: A fiber optic adapter block is disclosed. The fiber optic adapter block includes at least three fiber optic adapters provided in a stacked arrangement extending widthwise in a longitudinal direction, wherein every other adapter of the at least three fiber optic adapters is staggered in a front to back direction with respect to an adjacent adapter such that front ends of the every other adapter of the at least three fiber optic adapters are aligned at a first depth and a front end of the adjacent adapter is at a second depth that is different than the first depth.

Abstract: The present invention relates to producing an electro-optical phase shifter such that it may be integrated into a front-end of line of an electronic-photonic integrated circuit. A conducting bottom layer with a first refractive index is provided. A center layer including a ferroelectric material and with a second refractive index is provided on top of a first region of the conducting bottom layer, such that the center layer is not on top of a second region of the conducting bottom layer. A conducting top layer with a third refractive index is provided on top of the center layer. The second refractive index is lower than the first refractive index and lower than the third refractive index, such that the conducting bottom layer, the center layer, and the conducting top layer form a slot waveguide. A first electrical connector which connects the second region of the conducting bottom layer with an upper layer is provided.

Abstract: An optical cable laying construction set (X) that includes an optical cable (C1) and plugs (P1 and P2). The optical cable (C1) includes an optical fiber which is a refractive index distribution-type plastic optical fiber. The plug (P1) includes a connecting portion connectable to the optical fiber, and an electric connector connectable to an external device, and has a configuration for converting an electric signal into an optical signal. The plug (P2) includes a connecting portion connectable to the optical fiber, and an electric connector connectable to an external device, and has a configuration for converting an optical signal to an electric signal. In an optical cable laying construction method of the present invention, laying construction of the optical cable on site is carried out using the optical cable laying construction set (X).

Abstract: A connector assembly comprising: a first end and a second end; a first inlet for receiving a protective duct of an enhanced performance fibre unit; a second inlet for receiving a protective duct of an enhanced performance fibre unit; an outlet for receiving a protective duct of an enhanced performance fibre unit; a first internal channel between the first inlet and the outlet for receiving a length of enhanced performance fibre unit stripped of its protective duct; and a second internal channel for receiving a length of enhanced performance fibre unit stripped of its protective duct between the second inlet and a section of the first internal channel proximate the outlet.