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| Number | Title | Issue Date |
| 7228024 | Optical return loss detecting device An optical return loss detecting device is provided for measuring the optical return loss (ORL) of a device under test (DUT). The detecting device comprises a light source, an optical isolator connected to the light source for preventing reflected light by the DUT e... | 06/05/2007 |
| 7228020 | Optoelectronic arrangement having a surface-mountable semiconductor module and a cooling element An optoelectronic arrangement having a surface-mountable semiconductor module having at least one optoelectronic transmitting and/or receiving unit, a housing, in which the optoelectronic transmitting and/or receiving unit is arranged, and a mounting side of the hou... | 06/05/2007 |
| 7224870 | Method of coupling fiber to waveguide A method of producing a PLC based optical component comprising: defining a waveguide; etching a notch thereby defining a facet of the waveguide; and cutting a trench in front of the notch, the cutting being accomplished subsequent to the etching, whereby at least a ... | 05/29/2007 |
| 7224865 | Optical multiplexing/multiplexing devices and method for making the same Techniques for designing optical devices that can be manufactured in volume are disclosed. An optical assembly is build individually and includes a first tube with one end being polished to a slanted angle and attached with a filter. Because of the slanted angle, a ... | 05/29/2007 |
| 7224866 | Apparatus and method for forming an optical microresonator An apparatus and method forms an optical microresonator and includes spaced high precision ferrules through which an optical fiber passes. A ferrule can be rotatable and movable longitudinally in an axial direction. A clamp engages a ferrule and is operable to secur... | 05/29/2007 |
| 7224859 | Opto-electronic integrated circuit device, opto-electronic integrated circuit system and transmission method The opto-electronic integrated circuit device comprises an optical switch 18 provided in an input port 12a of a first input/output port 36a over a substrate 10 and changing over an optical path of an optical signal inputted ... | 05/29/2007 |
| 7224868 | Radiation-free optical cavity The present invention provides a micro-resonator including a plurality of waveguides forming optic junctions therebetween, with adjacent waveguides having different core permittivities and different cladding permittivities. Adjacent waveguides are mode-matched throu... | 05/29/2007 |
| 7224854 | System, method, and computer program product for structured waveguide including polarizer region An apparatus, method, computer program product, and propagated signal for a transport. The transport including: a waveguide including a guiding region and one or more bounding regions for enhancing containment of transmitted radiation within the guiding region, the ... | 05/29/2007 |
| 7224857 | Optical-routing boards for opto-electrical systems and methods and apparatuses for manufacturing the same Disclosed are optical-routing boards for opto-electrical systems having optical waveguides embedded in non-laminated optical substrates that enable optical signals to be routed among opto-electric components mounted on the top surfaces of the optical substrates. Met... | 05/29/2007 |
| 7224875 | Semiconductor optical device integrated with a photo detector The present invention provides a semiconductor optical device 1 that includes a photodiode capable of monitoring front light of the light-emitting device. The optical device 1 includes a photodiode 3, which is formed on a substrate 7 and ... | 05/29/2007 |
| 7221818 | Optical switch The present invention relates to an optical switch. The optical switch includes at least two binary control elements movable between a first and second position. The binary control elements include an at least one angle tuning element for adjusting the pathway of an... | 05/22/2007 |
| 7221844 | Optical waveguide circuit component and method of manufacturing the same An optical waveguide circuit component according to the present invention is characterized by that a clad layer composed of quartz is provided on the surfaces of a substrate and core formed by quartz doped selectively on a quartz plate structure, and a lid or a cove... | 05/22/2007 |
| 7221821 | Hitless errorless trimmable dynamic optical add/drop multiplexer devices The present invention is generally directed to integrated optical add/drop multiplexer devices in which light of a specific wavelength (or specific wavelengths) can be added to or dropped from a main fiber optic line. An actuation mechanism (e.g., heat) is used to t... | 05/22/2007 |
| 7221816 | Substrate, semiconductor device, method of manufacturing substrate, and method of manufacturing semiconductor device A substrate for mounting an optical element having a light emission/reception part is disclosed. The substrate includes a base material and an optical waveguide penetrating through the base material. The optical waveguide is positioned opposite to the light emission... | 05/22/2007 |
| 7221846 | Optical communication system In an optical communication system in which communication is conducted by transmitting light through a plastic optical fiber with a core diameter in the range from 300 to 600 μm, the average beam diameter and beam divergence angle expressed in terms of numerical ap... | 05/22/2007 |
| 7218828 | Optical fiber power splitter module apparatus Embodiments of the invention include an optical power splitting module apparatus. The module apparatus includes at least one input port, one or more multi-fiber output ports, and an optical fiber-splitter device coupled therebetween. The optical splitter device has ... | 05/15/2007 |
| 7218814 | Method and apparatus for optical mode conversion A mode conversion apparatus including a dynamic waveguide section associated with a plurality of control elements that, when activated, are able to produce a periodic refractive-index perturbation pattern in the dynamic waveguide section, wherein the periodic refrac... | 05/15/2007 |
| 7217584 | Bonded thin-film structures for optical modulators and methods of manufacture The present invention provides silicon based thin-film structures that can be used to form high frequency optical modulators. Devices of the invention are formed as layered structures that have a thin-film dielectric layer, such as silicon dioxide, sandwiched betwee... | 05/15/2007 |
| 7218442 | Optical communications system with fiber break detection in the presence of Raman amplification An optical communications system initiates automatic power reduction by selecting a portion of a Raman optical pumping signal from optical signals propagating on an optical fiber span. A signal related to a magnitude of the selected portion of the Raman optical pump... | 05/15/2007 |
| 7218662 | Coupled opto-electronic oscillators with low noise Coupled opto-electronic oscillators with a whispering-gallery-mode (WGM) optical resonator inside the laser cavity to produce oscillation signals out of the optical spectral range, e.g., RF or microwave frequencies. ... | 05/15/2007 |
| 7217041 | Fiber-optic alignment with detector IC A method for connecting optical signals carried by optical fibers between an optical encoder readhead and an optical signal processing IC having a plurality of photodetector portions arranged in a photodetector configuration. The optical signal processing IC is fixe... | 05/15/2007 |
| 7218808 | Equalizer circuit for a light source An optical equalizer circuit for a light source, the optical equalizer circuit comprising M optical couplers linked by differential delay lines, wherein coupling ratios for the respective M optical couplers of the equalizer circuit are calculated based on an input s... | 05/15/2007 |
| 7218527 | Apparatuses and methods for forming smart labels Apparatuses and methods for forming displays are claimed. This invention relates to a display which may be conformal and which can receive information in order to alter or configure the display. In one embodiment, a flexible layer may be made to receive an array of ... | 05/15/2007 |
| 7218798 | Optical deflection element and optical switch An optical deflection element is configured to include a prism electrode provided on an optical waveguide, a first photonic crystal structure provided forward of the prism electrode in a light traveling direction being a position after a light passes through the pri... | 05/15/2007 |
| 7218815 | Athermal arrayed waveguide grating An athermal arrayed-waveguide grating is disclosed and includes an input waveguide for inputting two or more optical signals from one exterior side, a grating array for separating the optical signals into different wavelengths of light, a first slab, formed with two... | 05/15/2007 |
| 7215844 | Optical pulse chopper A method of producing narrow optical pulses includes receiving first and second optical pulses having first and second widths, respectively, the second optical pulse having a delay relative to the first optical pulse, and selectively interfering the first and second... | 05/08/2007 |
| 7215843 | Optical switching apparatus and optical switching method An optical switching apparatus includes an optical switch having a plurality of input ports and output ports, optical amplifiers, monitor circuits, optical amplifiers monitor circuits, and a controller that controls the optical switch. The optical amplifiers are con... | 05/08/2007 |
| 7215845 | Optical interconnect architecture An optical interconnect architecture provides three dimensional optical interconnects, with the optical interconnects provided along a plane such as a wafer or a substrate. One or more integrated circuits is provided on a second “electronic” plane that is spaced... | 05/08/2007 |
| 7215848 | Optical isolator utilizing a micro-resonator An optical isolator for coupling light from a first waveguide to a second waveguide is disclosed. The optical isolator utilizes a resonator coupled to the first and second optical waveguides. The resonator has a resonance at λ for light traveling from the first opt... | 05/08/2007 |
| 7215868 | Apparatus for tightly fixing an optical connector to an optical cable In a fixing apparatus for fixing an optical connector to an optical cable having an optical fiber and wire members arranged around the optical fiber, the fixing apparatus includes first, second, and third holding members. The first holding member is adapted to be in... | 05/08/2007 |
| 7215841 | Extracting phase error in waveguides Provided are a method and a system, wherein optical beams of a plurality of wavelengths are directed through a plurality of optical devices, wherein waveguides comprising the optical devices have different fabrication errors, and wherein the waveguides have a plural... | 05/08/2007 |
| 7215686 | Waveguide structure having improved reflective mirror features Integration of laser sources into optoelectronic integrated circuits requires that the laser do not operate using two cleaved end facets. Unfortunately, replacing of one of the end facets results by either a dry etched mirror or by a corner reflectors results in und... | 05/08/2007 |
| 7215842 | Light control element and light control device A light control element includes a substrate, an optical coupling component formed on the substrate by a photonic crystal structure, and a variable refractive index part provided in a part of the photonic crystal structure so as to divide The optical coupling compon... | 05/08/2007 |
| 7215846 | Mode discriminating on-chip optical coupler for an optical receiver connected to dual mode/multimode fiber A mode coupler structure includes a discriminating structure that discriminates between various incoming modes from an input optical fiber structure. A waveguide structure is coupled to the discriminating structure that couples light not discriminated by the discrim... | 05/08/2007 |
| 7212709 | Optical waveguide device and optical waveguide module An object of the present invention is to provide an optical waveguide device and an optical waveguide module having the function to multiplex/demultiplex or couple/decouple optical signals and particularly to provide an optical waveguide device and an optical wavegu... | 05/01/2007 |
| 7212713 | Optical transmission substrate, method for manufacturing optical transmission substrate and optoelectronic integrated circuit Provided is an optical transmission substrate including: a first substrate; an optical waveguide which has clad covering a core and a periphery of the core and extends on an upper surface of the first substrate; a second substrate provided parallel to the first subs... | 05/01/2007 |
| 7212723 | Monolithic waveguide arrays A waveguide array is fabricated by providing a photoreactive material and generating an optical intensity pattern corresponding to a geometry of the waveguide array. A relative translation of the photoreactive material is effected through the optical intensity patte... | 05/01/2007 |
| 7211816 | Method for in-situ continuity check on an optical bus A method of continuity checking an optical connection. An first optical source transmits an optical signal. A first optical receiver is checked for the optical signal. A second optical source transmits another optical signal. A second optical receiver checks for the... | 05/01/2007 |
| 7212695 | Variable optical delay line with a large continuous tuning range In accordance with the invention, a variable optical delay line with a large continuous tuning range comprises an incremental variable delay line to provide delay selected from a sequence of incrementally differing delays and a continuous variable delay line to prov... | 05/01/2007 |
| 7212697 | Planar optical circuit The invention relates a planar optical circuit having at least one functional layer with structures for guidance, changing, regulation, control, production and/or detection of optical signals, a carrier substrate on which the at least one functional layer is formed,... | 05/01/2007 |
