| Patent application number | Description | Published |
|---|
| 20080232409 | Tunable Laser - [Problems] To provide a tunable laser with high reliability and high performance, and of low cost. | 09-25-2008 |
| 20080240646 | OPTICAL DEVICE AND MANUFACTURING METHOD THEREOF - An optical device includes: a substrate side waveguide formed on a substrate; and a plurality of optical elements fixed on the substrate. The substrate side waveguide and an optical element side waveguide formed in each of the plurality of optical elements forms a continuous optical waveguide path. | 10-02-2008 |
| 20080300334 | Thermoplastic Resin Foam - A thermoplastic resin foam which has both high reflectance and superior shape-retention properties, suitable for use in backlights and illumination boxes for illumination signboards, lighting fixtures, displays and the like. The thermoplastic resin foam is manufactured by a manufacturing method including a procedure for holding a resin sheet composed of thermoplastic resin (A) and thermoplastic resin (B), which has a functional group having an affinyty with thermoplastic resin (A), within a pressurized inert gas atmosphere to enable the resin sheet to contain inert gas, and a procedure for foaming by heating the resin sheet containing inert gas at a temperature higher than the softening temperature of thermoplastic resin, under normal pressure. | 12-04-2008 |
| 20090010592 | MOUNTING STRUCTURE OF SEMICONDUCTOR OPTICAL ELEMENT - To provide a mounting structure of a semiconductor optical element, in which structure the turning of a refractive index matching gel is prevented. There is provided a mounting structure of a light emitting element, in which structure signal light emitted from one end of an SOA | 01-08-2009 |
| 20090122817 | VARIABLE-WAVELENGTH FILTER AND VARIABLE-WAVELENGTH LASER - Only the light at an overlapping wavelength of the transmission characteristics of at least two wavelength selecting filters is looped, and at least one of the wavelength selecting filters varies a selected wavelength. Since a loss due to the optical filters is small and there is not a loss caused by a highly reflecting film, the output of an external-resonator variable-wavelength laser can be increased. Optical circuit component ( | 05-14-2009 |
| 20090269971 | Electrical connector - An electrical connector to be connected to a flat conductive member includes a housing including an upper wall and a lower wall; a terminal including a contact portion for contacting with the flat conductive member; and an engaging protrusion for engaging the flat conductive member. The housing further includes a receptacle portion between the upper wall and the lower wall for receiving the flat conductive member. The upper wall includes a cut portion. The engaging protrusion is situated under the cut portion, so that an edge portion of the flat conductive member moves over the engaging protrusion and deforms into the cut portion when the flat conductive member is inserted into the receptacle portion. | 10-29-2009 |
| 20090285251 | PLANAR LIGHTWAVE CIRCUIT AND TUNABLE LASER DEVICE HAVING THE SAME - To prevent the property of an optical filter from being changed even if there is a change in a gap of directional couplers generated due to variations in manufacturing conditions so as to improve the yield. A tunable laser device includes a PLC and an SOA. The PLC includes: optical waveguides; an optical filter; a loop mirror; thin-film heaters; and asymmetrical MZIs. Optical coupling parts within the PLC are formed with the asymmetrical MZIs, so that there is no change generated in the property of the optical filter even if there is a change generated in a gap of the directional couplers due to variations in the manufacturing conditions. Therefore, the yield can be improved. | 11-19-2009 |
| 20110013654 | WAVELENGTH VARIABLE LASER DEVICE, AND METHOD AND PROGRAM FOR CONTROLLING THE SAME - Provided is a wavelength variable laser device wherein an SOA is simplified. The wavelength variable laser device includes: an optical filter formed on a PLC; an SOA that supplies light to the optical filter; a light reflecting section that returns the light transmitted through the optical filter to the SOA via the optical filter; optical waveguides which are formed on the PLC and connect the SOA, the optical filter, and the light reflecting section; a wavelength variable section that changes a wavelength of the light transmitting through the optical filter; and a phase variable section that changes a phase of the light propagated on the optical waveguides. | 01-20-2011 |
| 20110019961 | OPTICAL MIXER - When a waveguide of second signal light outputted from a first optical coupler intersects a waveguide of first local light outputted from a second optical coupler, a waveguide of a first signal light outputted from the first optical coupler and a waveguide of a second local light outputted from the second optical coupler are each provided with a loss compensation intersecting waveguide that compensates for loss that occurs when the waveguide of the second signal light outputted from the first optical coupler intersects the waveguide of the first local light outputted from the second optical coupler. | 01-27-2011 |
