Changhua Chen

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Polarization rotator-splitter/combiner based on silicon rib-type wa...
- Patent number 9,977,187
- Issue date May 22, 2018
- SiFotonics Technologies Co., Ltd.
- Tuo Shi
- G02 - OPTICS
Information Patent Grant
Optical coupler having anchored cantilever structure with multi-sta...
- Patent number 9,946,029
- Issue date Apr 17, 2018
- SiFotonics Technologies Co, Ltd.
- Tuo Shi
- G02 - OPTICS
Information Patent Grant
Silicon-based rib-waveguide modulator and fabrication method thereof
- Patent number 9,429,776
- Issue date Aug 30, 2016
- SiFotonics Technologies Co., Ltd.
- Tuo Shi
- G02 - OPTICS
Information Patent Grant
Electro-optic silicon modulator with longitudinally nonuniform modu...
- Patent number 9,285,651
- Issue date Mar 15, 2016
- SiFotonics Technologies Co, Ltd.
- Changhua Chen
- G02 - OPTICS
Information Patent Grant
Electro-optic silicon modulator with alternative capacitance-loaded...
- Patent number 9,223,185
- Issue date Dec 29, 2015
- SiFotonics Technologies Co, Ltd.
- Changhua Chen
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical Coupler Having Anchored Cantilever Structure With Multi-Sta...
- Publication number 20160041340
- Publication date Feb 11, 2016
- SiFotonics Technologies Co., Ltd.
- Tuo Shi
- G02 - OPTICS
Information Patent Application
Silicon-Based Rib-Waveguide Modulator And Fabrication Method Thereof
- Publication number 20150378185
- Publication date Dec 31, 2015
- SIFOTONICS TECHNOLOGIES CO., LTD.
- Tuo Shi
- G02 - OPTICS
Information Patent Application
Polarization Rotator-Splitter/Combiner Based On Silicon Rib-Type Wa...
- Publication number 20150338577
- Publication date Nov 26, 2015
- SIFOTONICS TECHNOLOGIES CO., LTD.
- Tuo Shi
- G02 - OPTICS
Information Patent Application
Electro-Optic Silicon Modulator With Capacitive Loading In Both Slo...
- Publication number 20150043866
- Publication date Feb 12, 2015
- SIFOTONICS TECHNOLOGIES CO., LTD.
- Changhua Chen
- G02 - OPTICS
Information Patent Application
Electro-Optic Silicon Modulator With Longitudinally Nonuniform Modu...
- Publication number 20140241658
- Publication date Aug 28, 2014
- SIFOTONICS TECHNOLOGIES CO., LTD.
- Changhua Chen
- G02 - OPTICS