Abstract: Reduced-profile connection components are described. The reduced-profile connection components are configured to connect various data transmission elements, including cables, network devices, and computing devices. A non-limiting example of a connection component includes a fiber optic connection component, including connectors, adapters, and assemblies formed therefrom. In some embodiments, the connection components may include mechanical transfer (MT) and multi-fiber push-on/pull-off (MPO) connection components, such as MT ferrules and MPO adapters. The reduced-profile connection components configured according to some embodiments have a smaller profile and/or require less parts to achieve a connection compared to conventional connection components. In some embodiments, the reduced-profile connection components may be used with conventional connection components. For example a reduced-profile connector may use a conventional MT ferrule to establish a connection within a conventional MPO adapter.

Abstract: In accordance with the following description, an optical communication connector includes a ferrule having retractable alignment pins that are actuable between an extended position and a retracted position. For example, the connector may include an inner housing assembly having optical fibers and an outer housing positioned over the inner housing assembly. The outer housing is shaped to be removable from the inner housing assembly, which has a movable pin clamp mechanically coupled to alignment pins for aligning the connector with another connector. The pin clamp may be slid from a first position (corresponding to a male gender) to a second position (corresponding to a female gender). Separately or in combination with changing gender, the polarity of a communication connector may be changed due to its inclusion of an asymmetric polarity-changing feature that is actuable by an installer to change a polarity of the communication connector.

Abstract: An optical module includes: a butterfly-type optical device including a body that contains a heating element in an interior space, a lid body that puts a lid on the interior space, and a plurality of pins; a substrate including a connecting surface to which the plurality of pins are connected; and a heat-dissipating component arranged to the connecting surface side, wherein the optical device is connected to the connecting surface with a heat-dissipating surface, of a part that has been arranged with the heating element, oriented to the heat-dissipating component side, and with a gap provided to a side of the lid body opposite to a side of the interior space.

Abstract: An integral chip is disclosed by embodiments of the present disclosure, including: two mono-mode vertical coupling gratings, two modulation modules, one 2×1 multi-mode interference coupler, and one dual-mode vertical coupling grating. The integral chip is capable of operating in dual wavelengths and dual polarization states by combination of polarization multiplexing and wavelength division multiplexing so as to realize modulation of complex formats and to enhance data modulation rate.

Abstract: A fiber optic cassette includes an enclosure having first and second generally planar outer walls, top and bottom walls, a rear wall, a plurality of standardized fiber optic connectors, and a movable latch that is anchored to enclosure. The movable latch includes a roof section that extends over the top wall and a pair of angled teeth that extend downwards from the roof section towards the bottom wall of the enclosure. The movable latch is configured to move between a first position and a second position. In the first position, the roof section and the angled teeth are vertically spaced apart from the top wall. In the second position, the roof section is flush against the top wall, the first and second teeth overhang over the first and second outer walls, and the pair of angled teeth are disposed at an oblique angle relative to the bottom wall.

Abstract: An optical sensor includes an optical fiber inscribed with a repeated refraction pattern such that light scattered from a location on the optical fiber is scattered at multiple frequencies in a range of frequencies. The inscribed patterns overlap at every measurement point along at least a portion of the length of the sensor. An optical sensing system including control circuitry coupled to the optical fiber detects measurement scatter data from the optical fiber over the range of frequencies, determines a change in the detected measurement scatter data over the range of frequencies, and extracts a parameter describing a state of the optical fiber from the determined change in the detected measurement scatter data.

Abstract: A pad-array arrangement structure on a substrate for mounting an IC chip on the substrate, wherein a structure with which it is possible to maximally avoid an increase in the number of wiring layers on the substrate is obtained by devising the pad arrangement in an IC pad-array region. A embodiment of the present invention provides a pad-array structure on a substrate for mounting an IC chip on the substrate. The present invention is characterized in that: a plurality of ground pads arrayed equidistantly in a first row, and a plurality of signal pads arrayed equidistantly in a second row on the inside of and parallel to the first row, are provided on a first circumferential edge in the pad-array region; each of the signal pads passes between two adjacent ground pads in the first row and is connected to an external circuit on the substrate; and electrical signals are input to and output from the external circuit.

Abstract: An optoelectronic module includes an interposer base having first and second recesses formed on a specified surface thereof; a joint material layer filled in the first and second recesses; a first optoelectronic element placed in the first recess and coupled to the interposer base via the joint material layer, wherein an optical signal is emitted from or passes through a lateral surface of the first optoelectronic element; and a second optoelectronic element placed in the second recess and coupled to the interposer base via the joint material layer, wherein a lateral surface of the second optoelectronic element faces the lateral surface of the first optoelectronic element for coupling to and receiving the optical signal emitted from or passing through the lateral surface of the first optoelectronic element. A fixture is used to place the first and second optoelectronic elements into the first and second recesses while controlling some critical distances.

Abstract: An optical system capable of routing primary and secondary high power lasers through a blocking switch is described.

Abstract: A wavelength multiplexer and de-multiplexer includes: a reflection member; a first port provided in the reflection member; a plurality of second ports provided in the reflection member to be spaced apart from the first port; and an optical filter on an optical path between the first port and the plurality of second ports, wherein a plurality of reflection surfaces inclined with respect to the optical filter are formed in the reflection member, a distance of a reflection point from the optical filter in each of the plurality of reflection surfaces becomes smaller as a reflection angle in each of the plurality of reflection surfaces is increased, and each of the plurality of second ports is positioned on a path of light reflected by each of the plurality of reflection surfaces.

Abstract: Reduced-profile connection components are described. The reduced-profile connection components are configured to connect various data transmission elements, including cables, network devices, and computing devices. A non-limiting example of a connection component includes a fiber optic connection component, including connectors, adapters, and assemblies formed therefrom. In some embodiments, the connection components may include mechanical transfer (MT) and multi-fiber push-on/pull-off (MPO) connection components, such as MT ferrules and MPO adapters. The reduced-profile connection components configured according to some embodiments have a smaller profile and/or require less parts to achieve a connection compared to conventional connection components. In some embodiments, the reduced-profile connection components may be used with conventional connection components. For example a reduced-profile connector may use a conventional MT ferrule to establish a connection within a conventional MPO adapter.

Abstract: A liquid crystal display includes a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.

Abstract: The present disclosure relates to fiber optic connection systems including fiber optic connector having retractable noses for protecting bare fiber ends of ferrule-less connectors. In certain examples, the retractable noses are used in combination with protective shutters. In other examples, the retractable noses can accommodate multiple optical fibers.

Abstract: A multi-channel optical module includes a stem configured to allow an optical active element transmitting and receiving an optical signal to be installed thereon, an optical module frame connected to the stem and configured to have an optical element forming an optical path corresponding to the optical active element, and an external housing configured to house the optical module frame therein and coupled to the stem, wherein the optical element includes a lens and a filter unit disposed in the optical path and an optical waveguide element to which an optical fiber is connected.

Abstract: There is described an optical fiber coupler in which at least one fiber is a multiple-clad fiber, containing a single-mode core supporting a single guiding mode and an inner multi-mode cladding guiding multiple modes. The multiple-clad fiber is fused with a second fiber of a different etendue to create an optical fiber coupler having an enhanced multi-mode signal transmission.

Abstract: A modular connector system for various types of different fiber optic and/or electrical connectors may include a connector having a housing configured to accommodate various different configurations of inserts that are configured to hold different types of either fiber optic connector, electrical connectors, or a combination of fiber optic and electrical connectors.

Abstract: A method and apparatus is disclosed for generating tunable attosecond-scale radiation pulses, with a frequency in range of mid-infrared to ultra-violet, from a silicon medium. The invention utilizes an intense laser pulse to drive a high harmonic generation (HHG) process in a silicon medium and a weak secondary field to control the HHG process. The weak secondary field has a frequency equal to the second harmonic of the intense laser pulse. The spatial, temporal and spectral properties of the HHG process and the emitted harmonic beam are tuned by adjusting the relative delay between the two fields and the intensity of the weak secondary field.

Abstract: The present invention provides three waveguide structures, including a protruding-type waveguide structure, a buried-type waveguide structure, and a redeposited-type waveguide structure, the protruding-type waveguide structure includes two axisymmetrically disposed first ends, and the first end is sequentially divided into a first region, a second region, and a third region in a direction toward an axis of symmetry; and the waveguide structure includes a first silicon substrate layer, a second silicon substrate layer, a first silicon dioxide layer, a second silicon dioxide layer, and a first silicon waveguide layer. The waveguide structure and the waveguide coupling structure that are provided in the present invention have advantages of a small size, low polarization dependence, and low temperature sensitivity, and a crosstalk value is greater than 25 dB, which meets a requirement of a passive optical network system, and provides feasibility for commercialization of the arrayed waveguide grating.

Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.

Abstract: An inter-lens adjusting method includes: fitting a plurality of fitting portions to a plurality of fitted portions, wherein each of the plurality of fitting portions is provided on the side of a first lens for collimating light emitted from a light emitting device and includes at least one of a convex portion and a concave portion and each of the plurality of fitted portions is provided on the side of a second lens for aggregating the light collimated by the first lens and has a shape to be fitted to a corresponding one of the plurality of fitting portions; and adjusting a position between the first lens and the second lens such that the light emitted from the light emitting device is aggregated into an optical fiber ferrule via the first lens and the second lens.