Abstract: A ferrule for an optical fiber connector has an external surface for alignment with a complementary surface of an alignment sleeve (i.e., the inside surface of a generally cylindrical or tubular sleeve). The external surface of the ferrule is generally cylindrical, having a sectional contact surface profile that is generally oval in shape. More specifically, a plurality of points of contact between the ferrule and the sleeve are defined along a curve in cross-section, wherein the center of curvature at each of the contact points along this contact point curve (i.e., the curve containing contact points that contribute to alignment) does not lie in the plane of the axis of the array of optical fibers.

Abstract: The present disclosure relates to a fiber optic connector and cable assembly. The fiber optic connector and cable assembly includes a fiber optic connector, a fiber optic cable, and an anchoring mechanism. The fiber optic connector includes a connector housing and a ferrule assembly having a ferrule and a spring. The fiber optic cable includes at least one optical fiber contained within a cable jacket and at least one strength structure for providing tensile reinforcement to the fiber optic cable. The fiber optic cable is attached to the fiber optic connector and the at least one optical fiber runs from the fiber optic cable through a total length of the fiber optic connector. The anchor mechanism anchors the at least one optical fiber to at least one of the cable jacket and the at least one strength structure.

Abstract: Techniques for using planar photonic switch fabrics with reduced waveguide crossings are described. In one embodiment, a system is provided that comprises a memory that stores computer-executable components and a processor that executes computer-executable components stored in the memory. In one implementation, the computer-executable components comprise an arrangement component that arranges a first planar switch fabric topology. The computer-executable components further comprise a transformation component that interleaves a plurality of inputs of the first planar switch fabric topology and a plurality of outputs of the first planar switch fabric topology to form a second planar switch fabric topology, the second planar switch fabric topology having a lower number of waveguide crossings than the first planar switch fabric topology.

Abstract: In various embodiments, the beam parameter product and/or beam shape of a laser beam is adjusted by coupling the laser beam into an optical fiber of a fiber bundle and directing the laser beam onto one or more in-coupling locations on the input end of the optical fiber. The beam emitted at the output end of the optical fiber may be utilized to process a workpiece.

Abstract: An electrical line arrangement, comprising a first and a second electrical line forming a coplanar strip line and at least one terminating resistor terminating the first and the second electrical line, is provided. In a first region of the electrical line arrangement the first and the second electrical line extend in a first distance from one another and in a second region of the electrical line arrangement the first and the second electrical line extend in a second distance from one another that is larger than the first distance. The terminating resistor is physically arranged at a position between the first and the second electrical line in the second region of the electrical line arrangement. At least one electrically conductive structure is arranged between the first and the second electrical line at least partially in the second region of the electrical line arrangement.

Abstract: A low loss high extinction ratio on-chip polarizer is disclosed. The polarizer is formed of a mode convertor followed by a mode squeezer and a dump waveguide, and may be configured to pass a desired waveguide mode and reject undesired modes. An embodiment is described that transmits a TE0 mode while blocking a TM0 mode by converting it into a higher-order TEn mode in a waveguide taper, squeezing out the TEn mode in a second waveguide taper to lessen its confinement, and then dumping the TEn mode in a waveguide bend that is configured to pass the TE0 mode.

Abstract: A cap apparatus is mounted to a fiber optic connector having a ferrule supporting optical fiber(s). A sealing apparatus is cooperatively configured with the cap apparatus for protecting an end face of the ferrule. The cap apparatus includes a body having opposite ends between which a cavity extends. The opposite ends of the body respectively define first and second openings to the cavity. A portion of the fiber optic connector extends through the first opening and into the cavity. The cap apparatus includes a cover mounted to the body and at least partially obstructing the second opening, wherein the end face of the ferrule is positioned within the cavity at a location spaced from the cover. The sealing apparatus is positioned between at least a portion of the cover and the end face of the ferrule.

Abstract: A micro splice protector for a fusion connection between a pair of optical fibers takes the form of a cylindrical sleeve of dimensions similar to that of the fusion splice itself, with an epoxy material used to encase the fusion splice within the sleeve. The sleeve is formed to exhibit an inner diameter only slightly greater than the outer diameter of the optical fibers, with the length of the sleeve typically formed to be only slightly longer than the stripped end terminations of the pair of fibers being spliced together. The cylindrical sleeve is formed of a rigid, but lightweight, material (e.g., stainless steel, fused silica) and an epoxy material is injected into the configuration to fill any gaps between the fusion connection and the inner surface of the sleeve. The result is relatively stiff fusion splice protector that is extremely small in size and well-suited for use in optical component packages where space is at a minimum.

Abstract: A cap main body is provided with an approximately rectangular conical occluded portion in a leading end side, an approximately rectangular tubular cover portion in an inner side of the occluded portion, and approximately rectangular tubular right and left and upper and lower side plates in a rear end side. A pair of slits are provided at upper and lower positions of the right and left side plates or right and left positions of the upper and lower side plates from an opening end of the cap main body toward an inward occluded portion so that elastic side plates are formed in a facing manner. A locking mechanism protruding out of an opening portion in a rear end of the cap main body and capable of locking to and unlocking from a spring push of the plug main body is provided in a leading end of the elastic side plates.

Abstract: An optical semiconductor module includes a resin body having a first surface and an opposed second surface, an optical device having a third surface and a fourth surface opposite the third surface, the optical device comprising an optical element located at the fourth surface, the optical element capable of at least one of receiving light from, and transmitting light through, the third surface, a first terminal located at the first surface of the resin body, and an electrical connection between the first terminal and the optical device, the electrical connection embedded in the resin body.

Abstract: A photonic integrated circuit (PIC) having two tapered planar waveguide cores that are separated from one another by a relatively narrow gap, with each of these waveguide cores having a respective portion thereof located on a tapered planar slab core. The relative positions of the slab core and the two waveguide cores are such that the light crossing between the two waveguide cores undergoes a polarization rotation between the TM and TE polarizations with a relatively low insertion loss. The corresponding waveguide structure can be used as a relative polarization-rotating splitter for light propagating in one direction or as a relative polarization-rotating combiner for light propagating in the opposite direction. At least some embodiments of the disclosed PIC can advantageously be fabricated using a complementary metal oxide semiconductor technology and/or a conventional silicon-on-insulator platform.

Abstract: An optical connector is disclosed. The optical connector provides a first plug, a second plug, a sleeve, a spring, and a shell. The first plug and the second plug jointly rotate without rubbing end surfaces of ferrules thereof. The second plug provides a projection, while, the shell provides a hollow that receives the projection of the second plug. The first plug is pushed against the second plug by the spring put between the first plug and the shell but unable to be detached from the second plug because of the projection of the second plug mated with the hollow of the shell, thereby the ferrules in the respective plugs make physical contact in the respective end surfaces.

Abstract: A system for providing electrical and optical interconnection using a 3D non-carbon-based topological insulator (TI) is disclosed. The system includes a length of the TI having a tube shape having wall thickness of about 10 nm to about 200 nm and a hollow interior portion surrounded by an interior surface of the TI. The length includes a first end and a second end, wherein the first end is configured to receive an optical signal, an electrical signal, or both. The optical signal propagates in the hollow interior portion along the length to the second end by total internal reflection due to a refractive index of the interior surface of the TI. The electrical signal propagates along an external surface of the TI to the second end.

Abstract: A traceable cable assembly includes a traceable cable having at least one data transmission element, a jacket at least partially surrounding the data transmission element, and first and second tracing optical fibers extending along at least a portion of a length of the traceable cable. The traceable cable assembly also includes a connector provided at each end of the traceable cable. The first and second tracing optical fibers each have a light launch end and a light emission end. The light launch ends of the first and second tracing optical fibers each include a bend. The bend allows for launching of light into the light launch ends without disengaging the first or second connectors from corresponding connector receptacles.

Abstract: Light diffusing optical fibers for use illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including a scattering layer.

Abstract: Techniques for reducing optical fiber bending loss in an optical transceiver are disclosed. In an embodiment, a small form-factor (SFF) optical transceiver housing includes a demultiplexer device, such as an arrayed waveguide grating (AWG) device, having a longitudinal center line that is offset laterally by a distance Doffset from the longitudinal center line of the SFF optical transceiver housing. The lateral offset distance Doffset may advantageously enable an intermediate optical fiber coupling the demultiplexer with an optical coupling receptacle, such as an LC connector, to be routed within the SFF optical transceiver housing in a manner that avoids introducing bends that are less than a minimum bending radius associated with the intermediate optical fiber cable. Thus some embodiments of the present disclosure enable greater tolerance when routing an intermediate optical fiber within housings that would otherwise introduce bending loss by virtue of their constrained dimensions.

Abstract: An optical adaptor for mounting to a receptacle to optically couple connectorized optical cables comprises an optical interface to optically couple a first connectorized optical cable terminated by a first optical connector and a second connectorized optical cable terminated by a second optical connector. The optical adaptor further comprises a mounting element being configured to insert the optical interface and being mountable to the receptacle. The mounting element is secured to the receptacle, when the first optical connector is mounted to the mounting element in a first state, and the mounting element is released from the receptacle, when the first optical connector is mounted to the mounting element in a second state allowing to pull the optical adaptor out of the receptacle.

Abstract: A fiber optic connector assembly incorporates features that improve structural rigidity and the integrity of transmitted signals. These features also facilitate a technique for reversing polarity of the connector assembly with little or no risk of twisting the optical fibers and without requiring the housing assembly to be disassembled. The connector is marked or embossed with transmit and receive connector labels that facilitate visual identification of the polarity of the connector. One side of the duplex connector can be marked with “A” and “B” labels corresponding to the receive and transmit connectors, respectively. The opposite side of the duplex connector can be marked with two “A” labels corresponding to the receive and transmit connectors, respectively. Thus, a user can readily identify whether the connector is configured for “A-B” polarity or “A-A” polarity.

Abstract: A semiconductor device includes a first chip, a dielectric layer over the first chip, and a second chip over the dielectric layer. A conductive layer is embedded in the dielectric layer and is electrically coupled to the first chip and the second chip. The second chip includes an optical component. The first chip and the second chip are arranged on opposite sides of the dielectric layer in a thickness direction of the dielectric layer.

Abstract: The rolled photonic fibers presents two codependent, technologically exploitable features for light and color manipulation: regularity on the nanoscale that is superposed with microscale cylindrical symmetry, resulting in wavelength selective scattering of light in a wide range of directions. The bio-inspired photonic fibers combine the spectral filtering capabilities and color brilliance of a planar Bragg stack compounded with a large angular scattering range introduced by the microscale curvature, which also decreases the strong directional chromaticity variation usually associated with flat multilayer reflectors. Transparent and elastic synthetic materials equip the multilayer interference fibers with high reflectance that is dynamically tuned by longitudinal mechanical strain. A two-fold elongation of the elastic fibers results in a shift of reflection peak center wavelength of over 200 nm.