Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9749081 | Wavelength/bandwidth tunable optical filter and driving method thereof | — | 2017-08-29 |
| 9618695 | Optical signal processing apparatus using planar lightwave circuit with waveguide-array structure | — | 2017-04-11 |
| 9477013 | Reflective optical source device | Dong Hun Lee, Ki-Soo Kim, Hyun-Soo Kim, Mi-Ran Park, O Kyun Kwon | 2016-10-25 |
| 9420357 | Method and apparatus for selecting wavelength by wavelength tunable optical receiver | Dong Hun Lee, Mi-Ran Park, Byung Seok Choi, Hyun-Soo Kim, O Kyun Kwon | 2016-08-16 |
| 9229183 | Multi-channel receiver optical sub assembly | Mi-Ran Park, Hyun-Soo Kim, Byungseok Choi, Young-Tak Han, O-Kyun Kwon | 2016-01-05 |
| 9099839 | Coherent wavelength tunable laser apparatus | Ki-Hong Yoon, Byung Seok Choi, O Kyun Kwon, Ki-Soo Kim | 2015-08-04 |
| 9042686 | Optical waveguide platform with hybrid-integrated optical transmission device and optical active device and method of manufacturing the same | Hyun-Soo Kim, Mi-Ran Park, Byungseok Choi, O-Kyun Kwon | 2015-05-26 |
| 8971710 | Optical line terminal for bidirectional wavelength-division-multiplexing optical network | Hyun-Soo Kim, Byungseok Choi, Mi-Ran Park, O-Kyun Kwon | 2015-03-03 |
| 8926198 | Multi-channel optical receiving module | Mi-Ran Park, Hyun-Soo Kim, O-Kyun Kwon | 2015-01-06 |
| 8886036 | Optical line terminal for monitoring and controlling upstream/downstream optical signals | Hyun-Soo Kim, Mi-Ran Park, Byungseok Choi, O-Kyun Kwon | 2014-11-11 |
| 8849119 | Wavelength-shifted bidirectional wavelength division multiplexing optical network | Hyun-Soo Kim, Mi-Ran Park, Byunseok Choi, O-Kyun Kwon | 2014-09-30 |
| 8804232 | Semiconductor optical devices and methods of fabricating the same | Dong Churl Kim, Kisoo Kim, Hyun-Soo Kim, Byung Seok Choi, O-Kyun Kwon +1 more | 2014-08-12 |
| 6684011 | Spot size converter and method of manufacturing the same | Yong Soon Baek, Kwang Ryong Oh | 2004-01-27 |
| 5937129 | Waveguide grating structure having linear and nonlinear waveguiding film | Seok-Ho Song | 1999-08-10 |
| 5915053 | Grating-assisted directional coupler formed a nonlinear thin film therein | Seok-Ho Song | 1999-06-22 |
| 5887103 | Nonlinear grating coupler using a tapered or stepped nonlinear thin film | Seok-Ho Song | 1999-03-23 |
| 5822480 | Nonlinear Y-junction waveguide structure | Seok-Ho Song | 1998-10-13 |
| 5731889 | Wavelength division demultiplexing device, and system using it | Chong-Hoon Kwak, El-Hang Lee | 1998-03-24 |