Abstract: A multi-fiber push on (MPO) connector configured to be field assembled after being pushed through a duct may include a ferrule portion configured to terminate fibers of a multi-fiber cable and a sub-assembly portion. The sub-assembly portion may be configured to include an adapter portion that may be configured to be coupled with the ferrule portion, a retaining portion that may be configured to be coupled with the multi-fiber cable, and a biasing portion that may be configured to extend on one or more sides of the fibers of the multi-fiber cable and to couple the adapter portion with the retaining portion. The biasing portion may be configured to apply one or more biasing forces to the adapter portion on one or more sides of the fibers to urge the ferrule portion in a forward direction such that the one or more biasing forces are balanced on such one or more sides of the fibers.

Abstract: A tray assembly for organizing cables includes a tray, at least one retainer coupled to the tray and configured to receive and retain an adapter assembly, and at least one tray rail coupled to the tray. The tray rail includes a first latch and a second latch that each have a first end and a second end. The tray rail also includes first and second biasing members for biasing the second end of the first and second latches, respectively, to an engaged position, wherein the respective first ends are movable to move the respective second ends to a disengaged position. A method of installing fiber optic cables using the tray is also disclosed.

Abstract: An optical module in which a space between a light emitting portion (or a light receiving portion) (11a) of an optical element (11) and an insulating layer (1) of an electric circuit board (E) is filled with a cured product of a light-transmissive resin composition containing a curing agent component including only a non-antimony-containing curing agent (i.e., an optical element bonding/reinforcing resin cured product (X)) and a junction between the optical element (11) and the electric circuit board (E) is reinforced with the cured product.

Abstract: An optical connection component enables rotational positioning of a ferrule while avoiding complication of a structure, and includes an optical connector and an adapter. The optical connector includes an optical fiber, a ferrule assembly having a ferrule and a holding portion with a flange, a housing, and an elastic member, and the adapter includes an alignment sleeve. In a state in which the optical connector and the adapter are not engaged with each other, the flange is biased by the elastic member to be rotatable about the ferrule's a central axis. In an axis misalignment state in which the ferrule's front end portion and the alignment sleeve are in contact with each other and the ferrule's outer peripheral surface is in contact with the housing's flat surface, the flange is biased by the elastic member.

Abstract: A waveguiding structure (500) includes one or more fluid channels (518) intersected by a waveguide (514). An aperture layer (570) of the waveguide structure includes an array of apertures adjacent to the one or more fluid channels, such that the array of apertures may allow emission signals from analytes in the fluid channels to pass through the aperture layer for detection. The aperture layer may be etched using a first etching step, while an air-gap in a substrate of the waveguiding structure may be etched using a second etching step, wherein the first etching step has a higher level of precision than the second etching step. The array of apertures may comprise one or more one-dimensional signature patterns of apertures associated with specific fluid channels of the device, such that the signature patterns may be used to demultiplex signals and to correlate a signal with one of the plurality of channels.

Abstract: A monolithic optical element for generating broadband radiation upon receiving input radiation at an input end of the optical element is disclosed, the optical element including: a hollow core region for guiding the input radiation along a longitudinal axis of the optical element towards an output end of the optical element; a cladding region surrounding the core region along the longitudinal axis and including transversally arranged micro-structures configured to provide non-linear optical behavior to the optical element causing the generation of the broadband radiation; and a supporting region surrounding the cladding region along the longitudinal axis of at least part of the optical element, wherein the supporting region has a transversal dimension which is sufficiently large to render the at least part of the optical element substantially rigid.

Abstract: An optical probe assembly including a lens assembly extending along a central axis for optically coupling to an optical fiber. The lens assembly can have a forward facing exit window. The exit window can have an exit lens with a convex exit surface. The exit lens can extend from a periphery of the exit window and terminate partway across the exit window. The convex exit surface of the exit lens can be tilted inwardly relative to the central axis. The exit lens can bend light received from the optical fiber forwardly out of the exit window at an outward angle relative to the central axis.

Abstract: The invention relates to an optical communication bundle (10) comprising one layer (1), said layer (1) including at least three parallel optical fibers (2) which together define a first side of the layer (1) and a second side of the layer (1) opposite the first side, and a weft yarn (3) interlaced with the optical fibers (2) in order to maintain the optical fibers (2) relative to one another, said weft yarn (3) extending alternately on the first side and on the second side of the layer (1), passing through the layer (1) from the first side to the second side and from the second side to the first side. According to the invention, the layer (1) has a position in which it is wound about itself so as to form a bundle in which the optical fibers (2) are non coplanar; and the interlacing between the weft yarn (3) and the optical fibers (2) is adapted to allow the sheet (1) to pass from the wound position into an unwound position in which the optical fibers (2) are coplanar.

Abstract: A dust plug for a fiber optic connector includes a plug wall, an alignment member and a ferrule protector. The plug wall includes a first side and a second side. The plug wall may or may not be part of a housing. The alignment member may extend from the first side of the plug wall wherein the alignment member is configured to engage with and be disposed within an adapter. The ferrule protector may extend from the second side of the plug wall wherein the ferrule protector may be configured to receive a ferrule of a fiber optic cable. The ferrule protector, the plug wall, and the alignment member may be configured to block a signal from the ferrule when the ferrule is disposed within the ferrule protector and when the member is inserted into the adapter.

Abstract: The present disclosure relates to laser treatment of an optical fiber to secure the optical fiber within a ferrule bore. In particular, the laser treatment modifies the physical structure of the optical fiber to aid in securing the optical fiber within the ferrule bore and to correct core-to-ferrule eccentricity errors.

Abstract: A system, method, and photonic chip for an optical circulator are described. The system includes a first polarization splitter, a first optical circuit, and a first controller. The first polarization splitter receives, at a first port of the first polarization splitter, a first optical signal. The first optical circuit is optically coupled to the first polarization splitter. The first optical circuit includes a first plurality of phase shifters. The first optical circuit receives, at a first port of the first optical circuit, a second optical signal. The first controller adjusts the first plurality of phase shifters such that the first optical circuit outputs the first optical signal at a second port of the first optical circuit and such that the first polarization splitter outputs the second optical signal at the first port of the first polarization splitter.

Abstract: A ferrule includes a ferrule body and at least one fiber. The fiber is inserted into a through hole axially disposed in the ferrule body, a first end of the fiber is located inside the through hole, an end face of the first end of the fiber is below a plane on which a connection end face of the ferrule body is located, and a first preset distance is a vertical distance between the end face and the plane. The first preset distance causes two abutted ferrules to have a gap between the fibers.

Abstract: Embodiments herein describe a pluggable module that includes a ROADM implemented in a photonic integrated circuit (PIC). By implementing the ROADM in a PIC, the ROADM can be placed on smaller, pluggable modules (e.g., a Small Form-factor Pluggable (SFP) which can be a hot-pluggable network interface module).

Abstract: An MCF of one embodiment combines the adoption of a plurality of cores with different refractive indices with suppression of manufacturing costs. The MCF has a glass optical fiber having a plurality of cores and a cladding, and a resin coating. The plurality of cores includes a first core with a high refractive index and a second core with a low refractive index. On a cross-section of the MCF, an arrangement of centers of a plurality of portions has no rotational symmetry about the cross-section center, the portions having a refractive index higher than that of the cladding. Furthermore, a mode leakage adjustment structure is provided to reduce a difference between a cutoff wavelength of a residual higher-order mode in the second core and a cutoff wavelength of a residual higher-order mode in the first core.

Abstract: An image display apparatus capable of achieving uniform image quality while improving the use efficiency of incident light, including: an image forming unit that emits image light and converts the image light into parallel light for an angle of view; a light guide plate that allows the image light converted by the image forming unit to enter, to travel inside the light guide plate, and to be emitted outward from the light guide plate; a first diffraction grating in the light guide plate that diffracts the image light and causes the image light to travel inside the light guide plate; a second diffraction grating in the light guide plate that diffracts the image light traveling inside the light guide plate and emits the image light outward from the light guide plate; and a recycler diffraction grating that diffracts and recycles the image light emitted from the second diffraction grating.

Abstract: A multicore optical fiber including four cores arranged in a linear configuration, the centerline of each core being spaced from the centerline of an adjacent core by a distance x of about 30 microns or less, and each core having a relative refractive index ?1. A cladding surrounding each of the four cores, the cladding including an inner cladding region with a relative refractive index ?2, a depressed-index cladding region with a relative refractive index ?3, and an outer cladding region with a relative refractive index ?4, wherein ?1>?2>?3 and ?1>?4>?3. Furthermore, each core of the four cores has a mode field diameter, at a wavelength of 1310 nm, of about 8.1 microns or less, and cross talk between adjacent cores is about ?18 dB or less at wavelengths of 1310 nm and 1550 nm per 2 km fiber length.

Abstract: Provided is a light guide plate which, when used as a light guide plate of a glasses-type device such as a wearable device for AR/MR, is capable of enhancing color reproducibility of an image. A light guide plate 10 includes a glass plate 1, and a resin layer 2 formed at a main surface of the glass plate 1. The difference in Abbe number ?d between the glass plate 1 and the resin layer 2 is less than 10. The refractive indices nd of the glass plate 1 and the resin layer 2 are 1.7 or greater and the difference between the refractive indices nd is 1.0 or less.

Abstract: Embodiments disclosed herein include optoelectronic systems and methods of forming such systems. In an embodiment, an optoelectronic system comprises a first substrate, a second substrate over the first substrate, and a micro-ring resonator (MRR) over the second substrate. In an embodiment, a heater is integrated into the MRR, a cladding is over the MRR, and an opening is through the first substrate and the second substrate to expose a bottom surface of the MRR.

Abstract: Disclosed herein are embodiments of a glass composition including SiO2 in an amount in a range from 53 mol % to 84 mol %, Al2O3 in an amount in a range from 0.3 mol % to 20 mol %, Na2O in an amount in a range from 3 mol % to 16 mol %, and at least one of Cs2O or Rb2O in an amount in a range from 0.05 mol % to 8 mol %. The glass composition has a first silver ion diffusivity at 110° C. of 5×10?19 m2/s or less, and the glass composition has a second silver ion diffusivity at 350° C. of at least 5×10?17 m2/s at 350° C. The glass composition is particularly suitable for use as a glass substrate of a photonic chip package.

Abstract: A device is disclosed that features a hybrid electro-photonic integrated circuit devices that include an electronic circuit layer mounted on a photonic circuit layer. In one aspect, a device includes a photonic circuit layer including a first surface, a second surface opposite the first surface, and photonic circuit portions tiled together to provide the photonic circuit layer. The photonic circuit layer includes electro-optical transceivers, one or more optical couplers, and waveguides. The waveguides include boundary-crossing waveguides that each extend across a boundary between adjacent photonic circuit portions. Each boundary-crossing waveguide includes an optical connection at the boundary. The optical connection has a width larger than a width of the waveguide away from the boundary. A first photonic circuit layer portion includes first and second electro-optical transceivers and first and second waveguides.