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| Number | Title | Issue Date |
| 7428362 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 09/23/2008 |
| 7403690 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 07/22/2008 |
| 7336865 | Optical switch An optical switch for switching the connection of one or more movable optical fibers to one or more stationary optical fibers, comprising a movable soft magnetic block connected to an end portion of each movable optical fiber, a stationary soft magnetic block connec... | 02/26/2008 |
| 7324726 | Dispersion compensation apparatus A dispersion compensation apparatus providing both coarse and fine dispersion compensation employing a pair of slab waveguides, a grating interconnecting the two waveguides, a mirror disposed within the second slab waveguide and one or more thermooptic lense(s), pos... | 01/29/2008 |
| 7310460 | Optical device A light controlling means includes a shutter member and an actuator. The shutter member is disposed in a slit and has a function to shut off signal light propagated in the light path of an optical fiber array. The actuator is constructed to drive and move the shutte... | 12/18/2007 |
| 7310454 | Photonic bandgap modulator, amplifier, demux, and TDM devices An optical device includes at least two photonic bandgap crystal (PBG) stacks that are each comprised of alternating layers of high and low index materials. A defect region is formed in a cavity region between the at least two photonic bandgap crystal stacks so as t... | 12/18/2007 |
| 7289713 | Optical waveguide and method of manufacturing the same Some of the embodiments of this invention provide optical waveguides which achieve high use efficiency of core material and which are inexpensive. Some other embodiments of the invention provide methods of manufacturing such optical waveguides. An method of manufact... | 10/30/2007 |
| 7286730 | Optical switch having angle tuning elements and multiple-fiber collimators An optical switch with a compact form factor includes a multiple-fiber collimator and an angle tuning element for deflecting an optical beam from an input fiber into one of at least two output fibers. The angle tuning element may be provided between a pair of coaxia... | 10/23/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7272288 | Large mode area fibers using higher order modes The specification describes an optical fiber device wherein a LOM is converted to an HOM prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output from the gain section, i.e. the HOM, may be utilized as is, or convert... | 09/18/2007 |
| 7272289 | Low bend loss optical fiber An optical fiber having both low macrobend loss and low microbend loss. The fiber has a MAC number less than 7.0 and a zero dispersion wavelength less than 1450 nm. The optical fiber advantageously comprises a primary coating and a secondary coating. The primary coa... | 09/18/2007 |
| 7245799 | Optical fiber connectors and systems including optical fiber connectors The invention features an apparatus including a first portion defining an optical axis and configured to connect to an optical fiber, a second portion having a reference surface configured to connect with a terminal, and a third portion between the first and second ... | 07/17/2007 |
| 7242825 | Cantilever beam MEMS variable optical attenuator An improved cantilever beam optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignm... | 07/10/2007 |
| 7236657 | Optical switch and optical add/drop multiplexer using the same An optical switch easy to adjust optical parts without using a catoptric system and an optical add/drop multiplexer using the optical switch are provided. Between an input light outputting collimator device 20 and an output light inputting collimator device | 06/26/2007 |
| 7236663 | Display element and display device using the same A display element is provided with a light source and a waveguide that propagates a light emitted from the light source, wherein the light propagated in the waveguide is extracted to outside from a waveguide lateral face, and wherein the light is extracted out of th... | 06/26/2007 |
| 7233739 | Optical bit stream reader system An all optical fiber bit stream reader system for examining the data contents of an optical fiber involving the conversion of a temporal timing signal into a spatially located signal is provided. The invention generally comprises generating and detecting a signal in... | 06/19/2007 |
| 7223025 | Packaging for a fiber-coupled optical device An optical device assembly comprises a substrate with a component and fiber groove thereon. A segment of optical fiber is engaged with the fiber groove, which positions the fiber segment for optical coupling with a component on the substrate. A fiber retainer mainta... | 05/29/2007 |
| 7215869 | Cantilever-type PLC optical attenuator and manufacturing method thereof Disclosed herein is a cantilever-type PLC optical attenuator. The optical attenuator includes a base substrate made of silicon, an input waveguide, and output waveguide. Front portions of the upper and lower silicon substrates around the output waveguide are thinner... | 05/08/2007 |
| 7215854 | Low-loss optical waveguide crossovers using an out-of-plane waveguide An improved low-loss waveguide crossover uses an out-of-plane, such as vertical, waveguide to bridge over any number of waveguides with very low, or essentially no, optical loss or crosstalk. Optical signals transmitted in a waveguide system having the improved wave... | 05/08/2007 |
| 7197225 | Variable optical attenuator A variable optical attenuator has a first and second waveguides that are optically coupled together. At least one of the waveguides has a movable cantilever portion that is movable relative to the other to control attenuation of an optical signal traveling between t... | 03/27/2007 |
| 7194150 | Optical modulation element module The present invention provides an optical modulation element module capable of stably operating for long periods without limiting the operating conditions. An optical modulation element module comprising an optical modulation element 12, a case 11 with... | 03/20/2007 |
| 7177081 | High contrast grating light valve type device A grating light valve has with a plurality of spaced reflective ribbons are spatially arranged over a substrate with reflective surfaces. The grating light valve is configured to optimized the conditions for constructive and destructive interference with an incident... | 02/13/2007 |
| 7177505 | MEMS-based actuator devices using electrets Electrets are used in a variety of MEMS-based actuator devices. The electret is able to store electrical charge for a long time with negligible charge leakage. Therefore, when an electret is incorporated into a MEMS device that requires actuation, the device can be ... | 02/13/2007 |
| 7167609 | Optical switch An optical switch has an input port, output ports, optical waveguides whose output path of an optical signal branch into two. A first stage optical switch section is provided in a branching portion of the optical waveguide, which switches a propagating path of an op... | 01/23/2007 |
| 7130498 | Multi-layer optical circuit and method for making A multi-layer optical circuit has a plurality of optical circuit layers. Each optical circuit layer is positioned on a corresponding one of a plurality of substrates. An optical fiber extends between at least two of the optical circuit layers and forms a portion of ... | 10/31/2006 |
| 7116855 | Optical shuttle system and method used in an optical switch An optical shuttle system for routing signals in a communications system that includes a terminal connected to a power source, a shuttle that includes waveguides used for routing the signals, and a beam connected to the terminal and the shuttle so that the beam susp... | 10/03/2006 |
| 7116858 | Optical switch elements An optical switch element, methods form making an optical switch element and optical switches containing the optical switch element. The optical switch element includes a housing containing a longitudinal channel therein having a channel axis defined along a length ... | 10/03/2006 |
| 7113664 | Optical waveguide switch and method of manufacturing the same Optical waveguides facing each other with a layer-to-layer spacing kept not to permit the occurrence of a proximity effect perturbation within a gap section formed in an intermediate layer are configured so that at least one of the optical waveguides is moved toward... | 09/26/2006 |
| 7110634 | Optic switching mechanism Techniques for switching an optical element from one path to another, where each path has high dimensional stability in a harsh thermal and dynamic environment, are disclosed. In one particular embodiment, the optic is mounted on a rotable platform. A spring mechani... | 09/19/2006 |
| 7106930 | Dynamic optical demultiplexer/multiplexer formed within a PLC A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common input/output port for launching radiation in the form of an input signal ha... | 09/12/2006 |
| 7099527 | Optical waveguide switch and method of manufacturing the same Optical waveguides facing each other with a layer-to-layer spacing kept not to permit the occurrence of a proximity effect perturbation within a gap section formed in an intermediate layer are configured so that at least one of the optical waveguides is moved toward... | 08/29/2006 |
| 7095959 | Optical time division multiplexing/demultiplexing system A multiplexing/demultiplexing system has a multiplexor that includes a first plurality of optical switches having a plurality of outputs and a first plurality of optical delay elements coupled to the optical switches. A source of optical light is coupled to the dela... | 08/22/2006 |
| 7095916 | Beam-steering optical switching apparatus The systems and methods described herein are directed to motion transformers as well as their integration and/or assembly, for use in directing optical beams and positioning of small optical elements for creating a variety of tunable optical components. More particu... | 08/22/2006 |
| 7068372 | MEMS interferometer-based reconfigurable optical add-and-drop multiplexor The interferometer comprises a beam splitter, a mirror and a phase modulator. The beam splitter splits a signal into a first portion and a second portion. The mirror reflects the first portion. The first portion includes an optical path length, which is fixed. The p... | 06/27/2006 |
| 7064726 | Antenna device and transmitting/receiving device An antenna apparatus includes two circular waveguides including a fixed-side circular waveguide and a rotation-side circular waveguide, each having a propagation mode in a TM01 mode, and being arranged coaxially with each other while a waveguide-side choke is provid... | 06/20/2006 |
| 7062130 | Low-loss optical waveguide crossovers using an out-of-plane waveguide An improved low-loss waveguide crossover uses an out-of-plane, such as vertical, waveguide to bridge over any number of waveguides with very low, or essentially no, optical loss or crosstalk. Optical signals transmitted in a waveguide system having the improved wave... | 06/13/2006 |
| 7057819 | High contrast tilting ribbon blazed grating The light modulator includes elongated elements and a support structure coupled to the elongated elements. Each element includes one or more lengthwise slits within an active optical area, and a light reflective planar surface with the light reflective planar surfac... | 06/06/2006 |
| 7054515 | Diffractive light modulator-based dynamic equalizer with integrated spectral monitor An integrated device of the present invention comprises free-space optics, a bi-directional multiplexor/de-multiplexor, a diffractive light modulator, a beam splitter, an optical performance monitor, and a controller. The free-space optics collimate, transform and i... | 05/30/2006 |
| 7049164 | Microelectronic mechanical system and methods The current invention provides for encapsulated release structures, intermediates thereof and methods for their fabrication. The multi-layer structure has a capping layer, that preferably comprises silicon oxide and/or silicon nitride, and which is formed over an et... | 05/23/2006 |
| 7050696 | Assembly apparatus for an optical transceiver An assembly apparatus for an optical transceiver has a positioning device and an assembly device. The assembly device has a base, a transverse adjustment mechanism adjustably mounted on the base, a clamping mechanism mounted on the transverse adjustment mechanism fo... | 05/23/2006 |
