Patent application number | Description | Published |
20140241658 | Electro-Optic Silicon Modulator With Longitudinally Nonuniform Modulation - A device, such as a silicon modulator, in accordance with the present disclosure employs PN diodes without sacrificing the modulation depth, while achieving lower loss and better impedance matching to 50-Ohm drivers. In one embodiment, the device includes an input waveguide, an input optical splitter coupled to the input waveguide, first and second optical phase shifters coupled to the input optical splitter, an output optical splitter coupled to the first and second phase shifters, and an output waveguide coupled to the output optical splitter. The phase shifters are designed with variant capacitance per unit length. | 08-28-2014 |
20150043866 | Electro-Optic Silicon Modulator With Capacitive Loading In Both Slots Of Coplanar Waveguides - Embodiments of the present disclosure provide a high-speed silicon modulator without the microwave mode conversion and provide 50-ohm impedance matching to drivers simultaneously. In one aspect, a device may include an input waveguide region, an optic splitter, two optic phase shifters, an optic splitter, and an output waveguide. The device may include two curved waveguides. Either or both of the curved waveguides may have specially doped regions including PN junctions or MOS capacitors. The PN junctions or MOS capacitors may be alternatively connected to both slots of a coplanar waveguide forming the electrodes. | 02-12-2015 |
20150338577 | Polarization Rotator-Splitter/Combiner Based On Silicon Rib-Type Waveguides - Various embodiments of an integrated polarization rotator-splitter/combiner apparatus are described. An integrated polarization rotator-splitter apparatus may include an input waveguide section, a polarization rotator section, a polarization splitter section and an outgoing waveguide section, which can also be reversely connected as a polarization rotator-combiner. | 11-26-2015 |
20150378185 | Silicon-Based Rib-Waveguide Modulator And Fabrication Method Thereof - Various structures of an electro-optic device and fabrication methods thereof are described. A fabrication method is provided to fabricate an electro-optic device which may include a silicon-based rib-waveguide modulator which includes a first top silicon layer, having a first doped region that is at least partially doped with dopants of a first conducting type, a second top silicon layer, having a second doped region that is at least partially doped with dopants of a second conducting type, and a thin dielectric gate layer disposed between the first top silicon layer and the second top silicon layer. The second doped region may be at least in part directly over the first doped region. The modulator may also include a rib waveguide formed on the second top silicon layer, a first electric contact formed on the first top silicon layer, and a second electric contact formed on the second top silicon layer. | 12-31-2015 |
20160041340 | Optical Coupler Having Anchored Cantilever Structure With Multi-Stage Inverse Taper Core Waveguide And Fabrication Method Thereof - An optical coupler structure may include a substrate, a waveguide section and an anchored cantilever section. The substrate may include a main body and a sub-pillar structure formed on the main body. The waveguide section may be disposed on the substrate, and may include a core waveguide of a first material surrounded by a cladding layer of a second material. The anchored cantilever section may be disposed on the sub-pillar structure on the substrate, which may be configured to support the cantilever section and separate the cantilever section from the main body of the substrate. The anchored cantilever section may include a multi-stage inverse taper core waveguide and a cladding layer, of the second material, which surrounds the multi-stage inverse taper core waveguide. | 02-11-2016 |
Patent application number | Description | Published |
20150232509 | SPIRO RING COMPOUNDS AS HEPATITIS C VIRUS (HCV) INHIBITORS - A compound of formula (I) or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof is provided, which can be used for treating HCV infection or a HCV disorder. Also a pharmaceutical composition comprising the compound and the use of the compound and the pharmaceutical composition thereof are provided, which can also be used for treating HCV infection or a HCV disorder. | 08-20-2015 |
20150307509 | FUSED RING COMPOUNDS AS HEPATITIS C VIRUS INHIBITORS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF - Provided are fused tricyclic compounds effective to inhibit the function of the NS5A protein of formula (I), wherein X, X′, Y, Y′, A, A′, Q | 10-29-2015 |