Abstract: An optical fiber includes a bare optical fiber portion, to which elastic torsion is applied, and a coating layer, which coats the bare optical fiber portion, is formed of curable resin, and causes elastic repulsion against resilience occurring in the bare optical fiber portion so that the elastic torsion applied to the bare optical fiber portion is held.

Abstract: A reconfigurable optofluidic apparatus includes a microfluidic chip including a microfluidic channel further including an inlet for a liquid core waveguide fluid; a channel pathway for the liquid core waveguide fluid; a plurality of non-core waveguide fluid inlets; a switching chamber having a larger cross sectional area than the channel pathway; and an outlet for the liquid core waveguide fluid and non-core waveguide fluid, further including a plurality of non-liquid core waveguides disposed in the switching chamber. Light input to the apparatus propagates in the liquid core/liquid cladding (liquid) waveguide. The path of the liquid waveguide can be steered in a region of the apparatus over one of the non-liquid core waveguides such that the light is end-fire- or evanescently-coupled into the non-liquid core waveguide and output therefrom or between two of the non-liquid core waveguides and not coupled or output. Associated optofluidic switching methods are disclosed.

Abstract: An optical-electrical connector (100) includes a housing (11), a circuit board (3) received in the housing and having a transducer for bidirectional optical-electrical signal conversion, a lens member (42) mounted on the circuit board, a ferrule (43) receiving a number of optical channels and having a resisting face (431), a supporting portion (51) having a base wall (511), and a resilient member. The ferrule is situated behind the lens member within the housing and aligned with the lens member along a front-to-back direction. The resilient member is permanently maintained an invariable compressed state between the base wall and the resisting face of the ferrule to provide an invariable forward resilient force to the ferrule for fixing the ferrule to the lens member, when the optical-electrical connector is used and unused.

Abstract: The present invention relates to an optical fiber cable incorporating a multi-core fiber provided with a plurality of cores and a cladding region. The optical fiber cable has a jacket covering the multi-core fiber. The multi-core fiber is arranged so that a hold wrap holds the cores in a state in which they are provided with a bend of not more than a fixed radius of curvature, in order to reduce crosstalk between the cores.

Abstract: A fiber optic adapter module and tray. The fiber optic adapter module supports fiber optic adapters for fiber optic connections. The fiber optic adapter module may be included on an extendible tray portion of a fiber optic equipment tray and selectively configured to be tilted when extended for providing enhanced access to the fiber optic adapter module. In one embodiment, an adapter module panel of the fiber optic adapter module that supports fiber optic adapters contains at least two forward facing panel surfaces angled to one another to provide more surface area for supporting a higher density of fiber optic adapters and/or for neat routing and organizing of fiber optic connections. One or more fourth flared panel surfaces may also be included on an end(s) of the adapter module panel to provide sufficient interior space for fiber optic connections adjacent or proximate to sides of the fiber optic equipment tray.

Abstract: Systems and methods are described that facilitate using TFT control of electronic discharge for surface potential reduction and latent image formation on an imaging member. Corona charging is performed to first create a background surface potential, followed by selective discharge of individual pixels using an array of TFTs to supply free charge carriers to reduce the electrostatic surface potential to nearly zero. This is followed by discharged area development (DAD) to develop the latent image on a print medium (e.g., paper). The described systems and methods do not require a HVPS to drive the backplane; therefore, the TFT matrix is electrostatically decoupled from the developer and other system components in direct contact with the imaging member. Accordingly, known addressing systems may be used to address the TFT array.

Abstract: A scanning projector suitable for projecting an image comprising a plurality of light signals of different wavelengths is disclosed. Embodiments of the present invention comprise a beam combiner comprising a planar lightwave circuit that includes a plurality of surface waveguides arranged in define a plurality of input ports, a mixing region, and an output port. Each input port receives a different light signal and provides it to the mixing region. The mixing region combines the plurality of into a single composite output beam that is scanned over a region to create an image in a region.

Abstract: A silicon photonic chip is provided. An active silicon layer that includes a photonic device is on a front side of the silicon photonic chip. A silicon substrate that includes an etched backside cavity is on a backside of the silicon photonic chip. A microlens is integrated into the etched backside cavity. A buried oxide layer is located between the active silicon layer and the silicon substrate. The buried oxide layer is an etch stop for the etched backside cavity.

Abstract: An electronic device includes a main body, and an optical USB connector mounted on the main body. The optical USB connector includes a hollow housing mounted on the main body, a mounting portion fixed within the housing, an electrical connecting portion, and an optical connecting portion mounted on the mounting portion. The electrical connecting portion is for transmitting electrical signals. The optical connecting portion is for transmitting optical signals. The optical connecting portion is surrounding the electrical connecting portion.

Abstract: An optical-electrical converting device includes a first substrate, a planar waveguide, a bearing member, a reflective member, a second substrate, a laser beam emitting member, and a driving chip. The first substrate includes a supporting surface. The planar waveguide is supported on the supporting surface, and includes a laser beam incident surface. The bearing member is supported on the supporting surface, and includes a sloped surface aligned with the laser beam incident surface. The reflective member is positioned on the sloped surface. The second substrate is supported on both the bearing member and the planar waveguide. The second substrate comprising a lower surface and an upper surface. The laser beam emitting member is positioned on the lower surface, and includes a laser beam emitting surface aligned with the reflective member. The driving chip is positioned on the upper surface, and is electrically connected to the laser beam emitting member.

Abstract: An optical fiber attenuator includes a connector unit, an insert component and an attenuation unit. The connector unit includes a shell member and having a first shell part, and a second shell part that extends from and forms a unitary body with the first shell part, that reduces in cross-section with respect to the first shell part, and that cooperates with the first shell part to define a through hole. A resilient portion is connected to and extends inclinedly and outwardly away from the second shell part and towards the first shell part. The insert component includes an insert body disposed in the through hole, and a trench formed in the insert body. The attenuation unit has one end inserted into the trench and another end inserted into the second shell part.

Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula: X-Sp-Z, wherein: X represents a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, an other nitrogen containing group, a carboxylic acid group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic.

Abstract: An optical connector 11 is provided with a housing 17 for receiving ferrules 21 connected to an optical fiber cable, a lock arm 37 provided with the housing 17 and blocking removal from other housing fitted into the housing 17, a slit 45 formed in the housing 17, and in which the lock arm 37 moving in an unlocked direction is entered, a stopper 31 which has recesses 57 and is attached to the housing 17 to position the ferrules 21, and opening prevention ribs 59 respectively vertically provided with a pair of upper wall parts 43 of the housing 17 facing in a state of sandwiching the slit 45, the opening prevention ribs being inserted into the recesses 57 in a state of abutting on a left inner wall surface 61 and a right inner wall surface 63 of the recesses 57 so as to regulate a separation between the pair of upper wall parts 43.

Abstract: A component for an optical probe, the component comprising: a tubular body defining an internal channel and an opening; a mounting ring which is mounted within the internal channel and configured to define an aperture aligned with the opening; and a window disposed across the aperture and bonded to the mounting ring around the aperture, wherein the window is diamond, wherein the mounting ring comprises a material having a coefficient of linear thermal expansion a of 14×10?6 K?1 or less at 20° C. and a thermal conductivity of 60 Wm?1K?1 or more at 20° C., and wherein the tubular body is made of a chemically inert material.

Abstract: An optical fiber hydrogen sensor and a method of measuring a hydrogen concentration are provided. The optical fiber hydrogen sensor may include a light source, a polarization beam splitter connected to the light source to split light from the light source into two polarization beams, a high-birefringence optical fiber connected to the polarization beam splitter and coated with a hydrogen reactant, and an optical spectrum analyzer connected to the polarization beam splitter to measure interference spectrum generated at the high-birefringence optical fiber.

Abstract: A ferrule for optical waveguides includes an exterior of the ferrule, an interior of the ferrule, and a stress-isolation region between the interior of the ferrule and the exterior of the ferrule. The interior of the ferrule has a bore defined therein that is configured to receive an optical waveguide. The material of the stress-isolation region has an elastic modulus that is less than the elastic modulus of material of the interior and exterior of the ferrule, whereby the stress-isolation region limits communication of stresses therebetween.

Abstract: The optical waveguide device includes a first optical coupler which branches input light and outputs first signal light and second signal light, an optical phase shifter including a first and a second optical waveguides of optical path lengths different from each other and giving a phase difference between the first signal light and the second signal light, and the second optical coupler coupling the first signal light outputted from the first optical waveguide and the second signal light outputted from the second optical waveguide. The first optical waveguide and the second optical waveguide have the same waveguide width and have optical waveguides bent with substantially the same radius of curvature.

Abstract: Systems and methods are disclosed for implementing a rotary sensor system including rotating system components in RF signal and optical signal communication with stationary system components through a rotary coupler. The rotary coupler may be provided with an optical transmission line that passes inside or through the center of an inner conductor of a coaxial RF transmission line that itself extends across the rotational interface/s of the rotary coupler such that optical and RF signal energy may be provided simultaneously or otherwise across the rotary coupler using separate communication paths. A rotary sensor system may be further configured to convert multiple signals and/or types of signals to a common multiplexed optical signal stream for transmission together across an on-axis rotational optical interface of the rotary coupler.

Abstract: A waveguide can have a first longitudinal section, with at least one core having a first refractive index and at least one sheath surrounding the core. The sheath can be made of a material having a second refractive index so the waveguide will guide at least one optical signal in the core. A third longitudinal section has a sheath and a coating surrounding the sheath having a third refractive index so the third longitudinal section of the waveguide will guide at least one optical signal in the sheath. A second longitudinal section, arranged between the first longitudinal section and the third longitudinal section being adapted to guide an optical signal from the core into the sheath.

Abstract: A liquid crystal display includes a substrate, a plurality of gate lines formed on the substrate, a plurality of data lines intersecting the plurality of gate lines, a plurality of thin film transistors connected to the plurality of gate lines and the plurality of data lines, and a plurality of pixel electrodes connected to the plurality of thin film transistors and arranged in a matrix, wherein each of the pixel electrodes includes a first side parallel to each gate line and a second side being shorter than the first side, the second side being formed next to the first side, wherein the plurality of pixel electrodes that are adjacent to each other in a column direction are connected to different data lines from each other.