Abstract: The invention provides a lighting device comprising (a) a light converter comprising a light receiving face; and (b) a solid state light source configured to generate a light source light with a photon flux of at least 10 W/cm2 at the light receiving face, wherein the light converter is configured to convert at least part of the light source light into light converter light having a first frequency, wherein the light converter comprises a semiconductor quantum dot in an optical structure selected from a photonic crystal structure and a plasmonic structure, wherein the optical structure is configured to increase the photon density of states in the light converter resonant with the first frequency for reducing saturation quenching, and wherein the quantum dot has a quantum efficiency of at least 80%.

Abstract: Examples described herein include optical connectors with different positions. In some examples, an electronic device comprises a housing, an optical fiber, and a first optical connector secured to the optical fiber. The housing may have a first wall. The optical fiber may be within the housing. The first optical connector may be moveable between a first position and a second position along the first wall.

Abstract: An apparatus and method that reduces laser speckle by using stimulated Raman scattering in an optical fiber. The fiber core diameter and length are selected to achieve a desired output color. An adjustable despeckler is formed by combining two optical fibers in parallel and adjusting the amount of light in each path.

Abstract: In some embodiments, the present disclosure is directed at an optical fiber connector that occupies a small volume, and can therefore fit into small optical modules. In some embodiments, the optical fiber connector may comprise a removable faceplate. During installation, the faceplate may be removed to allow an optical fiber plug with a flange to be placed within the optical fiber connector. The flange may comprise one or more spring tabs. The faceplate may then be re-attached to the optical fiber connector, wherein at least a portion of the faceplate engages with the flange and secures the optical fiber plug with the optical fiber connector. The one or more spring tabs may also engage with the removable faceplate, thereby holding the optical fiber plug in place so as to ensure proper light transmission from the fiber to an opposing fiber.

Abstract: A fiber optic alignment device includes a first and a second alignment block and a first and a second gel block. A fiber passage extends from a first end to a second end of the fiber optic alignment device. The fiber passage is adapted to receive a first optical fiber through the first end and a second optical fiber through the second end. An intermediate portion of the fiber passage is positioned between the first and the second ends. The intermediate portion is adapted to align the first and the second optical fibers between the first and the second alignment blocks. A first portion of the fiber passage is positioned between the first end and the intermediate portion of the fiber passage. The first portion extends between the first alignment block and the first gel block. A second portion of the fiber passage is positioned between the second end and the intermediate portion of the fiber passage. The second portion extends between the second alignment block and the second gel block.

Abstract: An optical device includes a plurality of optical ports for receiving optical beams. The optical device also includes a plurality of toric micro lenses each receiving one of the optical beams from a respective one of the optical ports. A dispersion element is provided for spatially separating in a dispersion plane the optical beam into a plurality of wavelength components. At least one focusing element is provided for focusing the plurality of wavelength components. A programmable optical phase modulator is also provided for receiving the focused plurality of wavelength components. The modulator is configured to selectively direct the wavelength components to prescribed ones of the optical ports. The toric lenses impart positive power to the optical beams in the port plane and negative optical power to the optical beams in a plane orthogonal to the port plane.

Abstract: A fiber management tray (20) is disclosed. The fiber management tray (20) includes a tray body (22) defining a fiber storage region (24) for storing excess optical fiber length (26). The tray body (22) also includes a splice mount (28) for mounting at least one optical splice (30). The fiber management tray (20) includes a restricted access region (32) and an unrestricted access region (34) on the tray body (22). The splice mount (28) and the fiber storage region (24) are provided at the unrestricted access region (34), and an optical splitter component (36) is provided at the restricted access region (32).

Abstract: A waveguide/diode is manufactured by taking into account the effect that losses have on a multi-mode optical signal as it transits through the waveguide/diode. In particular, the loss effects that are caused by higher order modes in the optical signal as it passes back and forth through the cross charge region of a PN junction are considered. The consequent stretching of the cross coupling distance for the optical signal is then evaluated to minimize the required length for the waveguide/diode.

Abstract: Methods, systems, and apparatus, including a photonic integrated circuit package, including a photonic integrated circuit chip, including multiple electrodes configured to receive the electrical signal, where at least one characteristics of a segment of the traveling wave active optical element is changed based on the electrical signal received by a corresponding electrode of the multiple electrodes; a ground electrode; and multiple bond contacts; and an interposer bonded to at least a portion of the photonic integrated circuit chip, the interposer including a conductive trace formed on a surface of the interposer, the conductive trace electrically coupled to a source of the electrical signal; a ground trace; and multiple conductive vias electrically coupled to the conductive trace, where each conductive via of the multiple conductive vias is bonded with a respective bond contact of the multiple bond contacts of the photonic integrated circuit chip.

Abstract: A ferrule assembly including: a ferrule formed with a fiber bore for receiving an optical fiber therein; and a rear seat connected to a rear end of the ferrule, wherein the rear seat is formed with a hollow chamber passing through the rear seat in a longitudinal direction and communicated with the fiber bore of the ferrule, and wherein an additional injection hole for injecting an adhesive into the ferrule assembly is formed in an external profile surface of the ferrule assembly, and directly communicated with the fiber bore of the ferrule or the hollow chamber of the rear seat. The ferrule assembly is configured to be adapted to insert a fiber before filling an adhesive and protect the fiber that has been inserted into the ferrule assembly during inserting the fiber or filling the adhesive into the ferrule assembly.

Abstract: A plug mounted on an optical cable with one or more optical contacts each one having a tab which is deformable elastically or mounted so as to pivot relative to the rest of the contact, including: a body including a front part and a rear part; a bushing fitted around the front part with axial sliding forward, the bushing bearing a tab with an appendage extending inside the rear part, the tab of the bushing and the tab of each contact being disposed relative to each other so that when a traction force is applied to make the bushing slide around the front part, the appendage is able to bear against the tab of each contact so as to deform it elastically or make it pivot until the disconnection is produced between the contact and the converter.

Abstract: Disclosed is a UV-visible laser system having ultrashort pulses with high power and/or high energy. The laser system includes at least one non-linear optical crystal (1) adapted for receiving two distinct ultrashort laser pulses (31, 32) in the visible or infrared domain emitted respectively by two distinct laser pulse sources (11, 12) and a temporal synchronization unit (41, 42) adapted so that the two ultrashort laser pulses (31, 32) are superimposed in time and space in the non-linear optical crystal (1) with any phase shift, and generate, by sum frequency, an ultrashort laser pulse (131) having an optical frequency equal to the sum of the respective optical frequencies of the two distinct laser pulses (31, 32).

Abstract: A fiber connector, comprising a housing having a chamber extending in a lengthwise direction from a first end configured to receive a fiber to a second end configured to connect the fiber to a laser processing head and a channel disposed on an exterior surface of the chamber, the channel comprising a double helical structure.

Abstract: A broad line red light generator is configured with a single mode (SM) pulsed ytterbium (“Yb”) fiber laser pump source outputting pump light in a fundamental mode (“FM”) at a pump wavelength which is selected from a 1030-1120 nm wavelength range. The disclosed generator further includes a SM fiber Raman converter spliced to an output of the Yb fiber laser pump source. The Raman converter induces an “n” order frequency Stokes shift of the pump light to output the pump light at a Raman-shifted wavelength within 1220 and 1300 nm wavelength range with a broad spectral line of at least 10 nm. The disclosed light generator further has a single pass second harmonic generator (“SHG”) with a lithium triborate (“LBO”) nonlinear optical crystal having a spectral acceptance linewidth which is sufficient to cover the broad spectral line of the pump light. The SHG generates a SM pulsed broad-line red light with a broad spectral line of at least 4 nm.

Abstract: An optical fiber assembly includes a ferrule and a plurality of optical fibers. Each optical fiber has an end portion positioned generally adjacent a front face of the ferrule. The end portion of each optical fiber has an end face for engaging a mating optical component and an enlarged portion with at least a portion thereof engaging the ferrule generally adjacent the front face of the ferrule. A method of fabricating an optical fiber assembly is also disclosed.

Abstract: An integrated optical coupler device comprising, on a substrate surface: an integrated optical coupling grating extending in lateral directions parallel to the substrate surface and which, by diffraction at its grating structures, either converts electromagnetic waves, guided parallel to the substrate surface, of at least two waveguide modes of integrated optical waveguides into fiber modes propagating perpendicularly to the substrate surface, or converts electromagnetic waves, propagating perpendicularly to the substrate surface, of a fiber mode into electromagnetic waves, propagating parallel to the substrate surface, of at least two waveguide modes, and a first conductor pair, connected to the coupling grating and formed by a first and a second integrated optical waveguide, through which, in mutually opposite first and second directions parallel to the substrate surface, electromagnetic waves of at least two waveguide modes can be conducted to the coupling grating or can be conducted away from the coupling

Abstract: An elongated device includes an optical fiber arranged to allow transmission of light to phase change material arranged long the elongated device, for optically heating the phase change material to change its stiffness from one stiffness value to a different stiffness value. Using distributed tilted or blazed Bragg gratings with light wavelength dependent unique grating periods along the optical fiber, a guide wire or catheter is provided which can be stiffness controlled at selected longitudinal portions. Behavior of the tip of a guide wire or catheter is controlled for optimal navigation. Portions of phase change material arranged inside a tube material can be activated at selected longitudinal parts of the elongated device.

Abstract: An assembly is provided that includes a ceramic converter for converting light having a first wavelength into light having a second wavelength, a metal-containing reflective coating, and a cooling element. The surface of the ceramic converter is at least partly coated with the metal-containing reflective coating. The coating dissipates the heat from the converter into the cooling element. The cooling element and the metal-containing reflective coating are connected to one another by a metallic solder connection.

Abstract: A fiber optic telecommunications device includes a frame and a fiber optic module. The fiber optic module includes a main housing portion defining fiber optic connection locations for connecting cables to be routed through the frame and a cable management portion for guiding cables between the main housing portion and the frame. The main housing portion of the fiber optic module is slidably mounted to the frame, the main housing portion slidable between a retracted position and an extended position in a sliding direction. The cable management portion of the fiber optic module includes a radius limiter slidably coupled to both the main housing portion and the frame, wherein movement of the main housing portion with respect to the frame slidably moves the radius limiter with respect to the main housing portion along the sliding direction.

Abstract: A fuel nozzle for a gas turbine engine includes a feed arm including a fuel passage for issuing a spray of fuel. A nozzle assembly is fixed at an upstream end of the feed arm having a fuel inlet in fluid communication with the fuel passage. A fiber optic cable is configured to collect burner radiation for a pyrometer input and has a first end centered within an optical connector of the nozzle assembly and a second end exposed from the spray outlet. The fiber optic cable fitted within the feed arm and nozzle assembly has a permanent bend radius preformed in the fiber optic cable. The bend radius can be equal to or greater than the minimum bend radii for the fiber optic cable to serve as a wave guide in wavelengths for monitoring combustion.