Abstract: Photonic crystal structures having a plurality of air columns and coating such structures to provide structures with improved performance are described herein. The coating includes a material that coats an uppermost portion of a photonic crystal structure, wherein the photonic crystal structure comprises a plurality of air columns and wherein the plurality of air columns are coated on their uppermost surface by the coating material.

Abstract: Systems and methods for low loss, high speed exchange optical switching. The optical switch of this invention includes one or more a switchable diffraction gratings. The optical switch of this invention is capable of connecting two or more input optical beams to two more output locations. Optical noise suppression means for switchable diffraction gratings can be utilized to suppress crosstalk.

Abstract: There is provided an optical switch for reducing an apparatus size without making a structure for switching an output path complicated, wherein the first reflecting member and the micromirror array, which are optically coupled with the diffraction grating via the second reflecting member, are arranged at the same side relative to the diffraction grating.

Abstract: A light transceiver module is designed for electronic devices. It forms an electric connection with the electric connector of the electronic device. The light transceiver module contains a base, a light-emitting device for providing optical signals, a light-receiving device for receiving optical signals, and a main circuit board. The base supports the light-emitting device, the light-receiving device, and the main circuit board. The main circuit board has a pluggable electric connector for connections with the electric connector of the electronic device. The light transceiver module can be used to simplify and optimize the devices using it.

Abstract: An optical fiber cable management panel is provided with slideable drawers and structure within the drawers for cable management and/or connection to other devices. Tray inserts drop into the drawers to provide the appropriate management and connection devices. A movable take-up mechanism manages the cable entering and exiting the drawers at side openings. Stackable pivoting storage trays on the tray insert include a detent arrangement for holding each tray in a pivoted access position. The tray inserts further include a front key, and a back tab mounting arrangement for mounting the tray inserts to the drawers, and side radius limiters including notches for extending over raised portions of the drawer. The take-up mechanism includes a U-shaped trough section and cable retention tabs. A control mechanism is provided for controlling movement of the take-up mechanism relative to the drawer.

Abstract: The invention relates to in particular to a device for optically regenerating pulses, the device comprising an optical bandpass filter adapted for providing time synchronization and intensity stabilization of dispersion-managed soliton pulses. The device further comprises noise suppression means distinct from the bandpass filter.

Abstract: A laser module includes: one or more semiconductor laser elements which emit one or more divergent laser beams; one or more collimator lenses which collimate the one or more divergent laser beams; a condensing lens which condenses the one or more collimated laser beams, and make the one or more collimated laser beams converge at a convergence position; an optical fiber which is arranged in such a manner that the convergence position is located on the light-entrance end face; and a package which contains the one or more semiconductor laser elements and the one or more collimator lenses, does not contain the condensing lens and the light-entrance end face, and is hermetically sealed.

Abstract: The invention provides techniques for drawing fibers that include conducting, semiconducting, and insulating materials in intimate contact and prescribed geometries. The resulting fiber exhibits engineered electrical and optical functionalities along extended fiber lengths. The invention provides corresponding processes for producing such fibers, including assembling a fiber preform of a plurality of distinct materials, e.g., of conducting, semiconducting, and insulating materials, and drawing the preform into a fiber.

Abstract: A system and method for aligning optical components based on coupled optical power and encircled flux is described. In one embodiment of the invention, coupled power and encircled flux is measured corresponding to multiple locations of a first optical component relative to a second optical element. The measured coupled power and encircled flux values are analyzed and an appropriate location of the first optical component relative to the second optical component is selected.

Abstract: A parallel mounted MEMs optical diagnostic switch disposed within an optical connector for directing optical signals from one or a plurality of light sources to one or a plurality of light collectors by activating a feedback loop through the use of micro electro mechanical systems (MEMS). The present invention includes one or more mirrors mounted parallel to the path of optical transmission through the tool. The mirrors and can be automatically activated at power up or selectively thereafter for detecting faults in any upstream fiber optic component. When in the passive mode, the present invention retracts away from the optical path so as not to interfere with normal system operations.

Abstract: Frequency conversion methods are taught wherein non-collinear phase matching configurations may be implemented in non-linear crystals used in three wave mixing processes such that the frequency conversion efficiency is enhanced through walk-off compensation while also maximizing conversion efficiency. The harmonic conversion techniques are especially applicable to sum frequency process, and in particular to third harmonic generation.

Abstract: The invention provides an optical fiber photodetector including a photoconductive element, such as a semiconducting element, having a fiber length. The semiconducting element is characterized as a non-composite material in at least one fiber direction. At least one pair of conducting electrodes is in contact with the semiconducting element along the fiber length, and an insulator is provided along the fiber length. An optical resonator can be disposed along the fiber length and along a path of illumination to the semiconducting element. The resonator is dimensioned to substantially reflect all illumination wavelengths except for a prescribed range of wavelengths transmitted to the semiconducting element. The fiber photodetector can be arranged in a photodetecting fiber grid, photodetecting fiber fabric, or other configuration for detecting incident illumination.

Abstract: A system and method are described for controlling acceptance of a fiber connector. A configurable adapter is employed for connecting fiber connectors to a laser housing. A specific version of the adapter permits connecting both general-purpose and specific-purpose fiber connectors to the laser housing. A less versatile configuration of the adapter permits connecting general-purpose fiber connectors to the laser housing, but rejects specific-purpose fiber connectors.

Abstract: A method for switching the direction of polarization in a relatively small domain in a thin-film ferroelectric material whose direction of polarization is oriented normal to the surface of the material involves a step of moving an electrically-chargeable tip into contact with the surface of the ferroelectric material so that the direction of polarization in a region adjacent the tip becomes oriented in a preselected direction relative to the surface of the ferroelectric material. The tip is then pressed against the surface of the ferroelectric material so that the direction of polarization of the ferroelectric material within the area of the ferroelectric material in contact with the tip is reversed under the combined effect of the compressive influence of the tip and electric bias.

Abstract: Segmented waveguides electrically coupled to a resonator and methods for electrically coupling waveguides to a resonator are disclosed. The resonator can be a split ring resonator. The disclosed structures can be useful to fabricate waveguide devices included, for example, in sensors and optical elements.

Abstract: A light guide body includes: at least a front end tapered portion including one end connectable to an optical fiber and the other end, the one end being thinner than the other end; a plurality of second taper portions, each including one end connectable to an optical fiber and the other end, the one end of the second taper portion being thinner than the other end of the second taper portion; and a main body connected to the other ends of the first and second taper portions. The front end tapered portion, the main body, and the second taper portions provide transmission of incident light with division between the one end of the front end tapered portion and the one ends of the second taper portions.

Abstract: A test apparatus includes a test head including a plurality of test boards for applying a test pattern to a device under test, a main frame for controlling a test sequence by the test head, and a fiber optic cable unit including a plurality of flat cables for optically coupling the test head and the main frame, a plurality of fiber optic cables, a dam for coupling the fiber optic cable unit and the plurality of fiber optic cables, a circumferential difference absorption apparatus for absorbing the difference in circumferential length between the plurality of flat cables of the fiber optic cable unit, and a cable guide unit for bending and holding the fiber optic cables coupled to the test board of the main frame.

Abstract: Embodiments of the present invention are directed to dual stage modular optical devices with insert digital diagnostics components. A first portion of a leadframe couples a first fabricated package including a light source and/or light detector to a second fabricated package with first opening for receiving inserts. A second portion of the leadframe couples the second fabricated package to a third fabricated package with a second opening for receiving inserts. A first component insert is coupled to the second fabricated package such that components of the first component insert can electrically interoperate with the light source and/or light detector. A second component insert is coupled to the third fabricated package such that components of the second component insert can electrically interoperate with components of the first component insert to implement digital diagnostics functions.

Abstract: An optical fiber interconnect system comprising a connector for carrying an array of optical fibers along a longitudinal axis. The adapter comprises a push-push coupling mechanism configured to receive and couple with the connector upon application of a first pushing force to the connector. The connector is disengaged and may be withdrawn from the adapter upon application of a second pushing force upon the connector. The pushing forces can be applied at a pushing region by using a stylus member. Spring-biased automatic shutters are included in the adapter to provide protection against dust and other contaminants, as well as eye injuries, when only one of the connectors is inserted in the adapter. The release mechanism that disengages the connector and adapter facilitates the handling of a small connector. When the release is operated, the separation of the connector and adapter is initiated actively without the need of a strong pull.

Abstract: An apparatus and system having an optoelectronic module, as well as a method of positioning the lens of the optoelectronic module in order to adjust the steering of a light beam are described herein.