Abstract: The present invention provides a fiber-optic communication system that allows high-bandwidth communications between components of an irrigation machine. In accordance with a preferred embodiment, the present invention teaches a system and method for providing a two-way communications link between a pivot controller panel and distributed irrigation machine components. According to further preferred embodiments, the two-way communications link of the present invention may also convert optical signals to electrical signals and route those signals to the appropriate connected devices.

Abstract: One embodiment of the present disclosure relates to an SFG (slanted fiber grating) that can easily realize a high-performance gain equalizer. The SFG includes an optical fiber comprised of silica-based glass and including a core, a first cladding containing a photosensitive material, and a second cladding. A specific section between two different points arranged along a fiber axis in the optical fiber is configured with a first region, a pair of second regions, and a third region. The first region includes a slanted Bragg grating provided in a region as the first cladding. The pair of second regions are arranged to sandwich the first region. The third region is disposed to sandwich both the first region and the pair of second regions. An MFD at a wavelength of 1.55 ?m in the third region is smaller than an MFD at a wavelength of 1.55 ?m in the first region.

Abstract: A gradient-index (GRIN) lens comprises an input surface defined by a body configured to receive electromagnetic (EM) waves from an aperture-constrained array; and an output surface defined by the body configured to output phase-aligned EM waves based on the received EM waves from the aperture-constrained array. The GRIN lens can be dimension-constrained in at least one dimension and can have a non-linear permittivity taper in at least a first dimension. The GRIN lens can provide gain for the received EM waves from the aperture-constrained array.

Abstract: The present disclosure is directed to a lockable optical connector. The connector includes an adapter member, an inner frame member, an outer frame member, an annular compression member, and a lock member. The inner frame member non-rotatably couples to the adapter member. The outer frame member retains the coupling between the inner frame member and the adapter member and physically couples to the adapter member, to provide a first locking mechanism. The annular compression member is disposed proximate the outer frame member and the locking member couples to the external surface of the inner frame member, compressing the annular compression member against the outer frame member to provide a second locking mechanism. A sealing element may be disposed between the outer frame member and the adapter member and a sealing element may be disposed between the outer frame member and the inner frame member to provide a weather-proof and water-tight lockable optical connector.

Abstract: A cable management system includes a cap that cooperates with a housing to enclose a connection between a first cable and a second cable. The cap defines a first port and a second port through which cables extend into the housing. A base is to be coupled to the cap. The base includes a first clamp that protrudes from a surface of the base and maintains an alignment of a portion of the first cable with the first port. The base also includes a base interlock portion. A first cable guide, separate from the base, is to be installed on the cap to maintain an alignment of a portion of the second cable. The first cable guide includes a second clamp, and a first cable guide interlock portion that cooperates with the base interlock portion to interfere with separation of the first cable guide from the base.

Abstract: A method of performing an entangling operation between two trapped ions in a quantum computer includes selecting a gate duration value of a pulse to be applied to a first ion and a second ion in a chain of trapped ions, determining one or more tones of the pulse, each tone comprising an amplitude value and a detuning frequency value, based on the selected gate duration value and frequencies of the motional modes of the chain of trapped ions, generating the pulse having the one or more tones, each tone comprising the determined amplitude and the determined detuning frequency values, and applying the generated pulse to the first and second ions for the gate duration value. Each of the trapped ions has two frequency-separated states defining a qubit, and motional modes of the chain of trapped ions each have a distinct frequency.

Abstract: The disclosure relates generally to optical systems, and more particularly, optical systems for temporal compression or stretching of optical pulses.

Abstract: A housing including a plurality of openings for receiving fiber optic connectors and protecting the polished end face of the connectors from damage while the connectors are stored within a telecommunications connection cabinet. A module with a plurality of optical fiber cables connected to a first optical fiber cable and terminated by a fiber optic connector. Each of the connectors are inserted within openings in a connector holder for storage and protection until the cables need to be connected to a customer equipment cable.

Abstract: A sensor installed into a mold including a cable insertion member having a fixing portion with a fitting recess is provided. The sensor includes an optical fiber a part of which is bendable, and a fiber holder having a fiber insertion portion through which the optical fiber is inserted and a to-be-fixed portion extending from the fiber insertion portion. Further, the to-be-fixed portion is fixed to the fixing portion while being fitted to the fitting recess.

Abstract: A beam steering apparatus includes a substrate; at least one light source provided on the substrate; a first waveguide configured to transmit a first light beam radiated from the at least one light source; at least one beam splitter configured to split the first light beam transmitted by the first waveguide to obtain a second light beam; a second waveguide configured to receive the second light beam; and a quantum dot optical amplifier provided on the second waveguide and comprising a barrier layer, a quantum dot layer, and a wetting layer, the quantum dot optical amplifier being configured to modulate a phase of the second light beam, and to amplify an intensity of the second light beam.

Abstract: An optical interface assembly, comprising a lens barrel, a lens disposed in the lens barrel, an optical receptacle, a stub disposed in the optical receptacle, and a diaphragm disposed between the lens and the stub. A diameter of a light passing hole of the diaphragm is smaller than a diameter of a light passing surface of the lens. A first end surface of the stub facing the lens is disposed at an inclined angle relative to an axis of the stub. When a light beam is coupled into the stub by the lens, a portion of a return light reflected from the first end surface is reflected to an outside of the light passing hole of the diaphragm.

Abstract: A waveguide display disposed in glasses includes a first pupil expander assembly operable to project a first image defined by a first field of view, and a second pupil expander assembly disposed adjacent the first pupil expander assembly and operable to project a second image defined by a second field of view different from the first field of view. The first pupil expander assembly is operable to emit light at a first non-zero angle with respect to a first emission plane associated with the first pupil expander assembly. The second pupil expander assembly is operable to emit light at a second non-zero angle with respect to a second emission plane associated with the second pupil expander assembly. The first non-zero angle is opposite to the second non-zero angle.

Abstract: Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable sheath having an interior surface and an exterior surface. The interior surface defines a longitudinal bore and the exterior surface defines an outermost surface of the optical fiber cable. The optical fiber cable also includes a plurality of micromodules disposed within the longitudinal bore. Each micromodule of the plurality of micromodules includes a micromodule jacket surrounding at least one optical fiber. The micromodule jacket of each of the plurality of micromodules is made of a first polymer composition having a first melt temperature, and the cable sheath is made of a second polymer composition having a second melt temperature that is less than the first melt temperature. The first polymer composition and the second polymer compositions are both low smoke, zero halogen materials.

Abstract: Disclosed here are embodiments of an optical fiber ribbon. In the optical fiber ribbon, a plurality of optical fibers are arranged in a row. The optical fibers are embedded in a primary matrix. The primary matrix comprises a base resin and an opacifier pigment. A secondary matrix is disposed around the primary matrix, and a layer of printing is disposed between the primary matrix and the secondary matrix. The secondary matrix has a contrast ratio of from 0.2 to 0.9 as measured according to ASTM D2805. Embodiments of a method of preparing an optical fiber ribbon are also disclosed in which optical fibers are arranged in a row and embedded in a primary matrix. Characteristics of the optical fibers is printed onto the primary matrix, and the primary matrix is coated with a secondary matrix having a contrast ratio of from 0.2 to 0.9 according to ASTM D2805.

Abstract: Passive optical couplers having passive optical activity indicators and methods of operating the same are disclosed. An example passive optical coupler for passively coupling first and second optical fibers includes a housing including: a first port configured to receive an end of a first optical fiber, and a second port configured to receive an end of a second optical fiber; and a passive optical activity indicator positioned at least partially within the housing, wherein a first portion of the passive optical activity indicator is exposed through the housing, and wherein the passive optical activity indicator is configured to passively illuminate in response to (i) first light propagating in the first optical fiber when the end of the first optical fiber is received in the first port, and (ii) second light propagating in the second optical fiber when the end of the second optical fiber is received in the second port.

Abstract: In accordance with a method for transferring optical signals to and from an optical component incorporated in a photonic integrated circuit (PIC), an incoming optical signal in a first polarization state is received at a splitter section of a polarization splitter rotator (PSR). The splitter section causes the optical signal to be directed to a first waveguide of a pair of waveguides of the PSR. One of the waveguides rotates a polarization state of an optical signal traversing therethrough into an orthogonal polarization state and the other waveguide maintains a polarization state of an optical signal traversing therethrough. The incoming optical signal is directed from the first waveguide to the optical component. An outgoing optical signal is received in a second waveguide of the pair such that the outgoing optical signal traverses the second waveguide and the splitter section to be output by the PSR.

Abstract: The invention relates to a fiber clamp with a base plate and at least two clamping bodies arranged parallel to one another on the base plate, the clamping bodies being pressed towards one another in one direction by means of a tensioning device, so that a fiber that can be arranged between the base plate and the clamping bodies is between the base plate and the clamping bodies can be pinched.

Abstract: An integrated functional multilayer structure includes substrate film, circuitry provided upon the substrate film including a first light source and a monolithic lightguide layer, the lightguide layer includes a first surface and an opposite second surface, the second surface facing the first light source and a portion of the first surface containing, a pre-defined outcoupling area for the light emitted by the first light source and transmitted within the lightguide layer, the lightguide layer further containing a light leakage prohibition region and the attenuation of emitted light effectuated on a direct optical path between the first light source and the outcoupling area is less than the attenuation effectuating on a optical path between the first light source and the light leakage prohibition region. A related method of manufacture is also presented.

Abstract: The present disclosure generally pertains to systems and methods that utilize optical frequency discriminators based on fiber Bragg gratings. In some embodiments, an optical frequency discriminator has a polarization-maintaining fiber Bragg grating (PM-FBG), and an incoming polarized optical signal is reflected from the PM-FBG, which differentiates the two polarization modes in the incoming signal according its frequency relative to the two resonance peaks of the PM-FBG. The optical frequency discriminator then compares (e.g., subtracts) the reflected power in the two polarization modes to provide an output having an amplitude that varies linearly with the frequency of the incoming signal. This output may then be used to extract various information about the frequency of the incoming signal. As an example, the output may be used to recover data that has been frequency modulated onto the incoming signal or to characterize the frequency noise of the incoming signal.

Abstract: A connector assembly arrangement comprising, disposed on the faces of a circuit board in an electronic device, connector assemblies which, along with having a plug connector that incorporates a photoelectric conversion element capable of converting optical signals and electrical signals from one to the other and a receptacle connector with which said plug connector is mated, have the plug connector and the receptacle connector electrically connected through mutual contact between terminals; wherein the plug connector, from which a fiber optic cable for optical signal transmission that is connected to the photoelectric conversion element extends in one direction from said plug connector, also has terminals connected to the above-mentioned photoelectric conversion element; the fiber optic cable is a single fiber optic cable; and a plurality of connector assemblies are disposed on at least one of the two faces of the circuit board.