Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10481466 | Optical switch | Jiejiang Xing, Xin Tu | 2019-11-19 |
| 10422960 | Optical switch and optical switching system | Jiejiang Xing, Xin Tu | 2019-09-24 |
| 10317584 | Grating coupler and preparation method | Xin Tu, Hongyan Fu | 2019-06-11 |
| 8644705 | Method, and system for a re-configurable optical multiplexer, demultiplexer and optical add-drop multiplexer | Giovanni Barbarossa, Song Peng | 2014-02-04 |
| 8063409 | Systems, devices and methods of broadband light sources with tunable spectrum | Song Peng | 2011-11-22 |
| 8014067 | High extinction ratio and low crosstalk compact optical switches | Song Peng | 2011-09-06 |
| 7693364 | Apparatus, system and method for a tunable optical filter | Giovanni Barbarossa, Song Peng | 2010-04-06 |
| 7577242 | Method of controlling the user calling load in soft switch system | Jiashun Tu, Lingjiang Mu | 2009-08-18 |
| 7486443 | High extinction ratio and low crosstalk compact optical switches | Song Peng | 2009-02-03 |
| 7333686 | System and method for a re-configurable optical channel dropping de-multiplexer | Giovanni Barbarossa, Song Peng | 2008-02-19 |
| 7298540 | Equalizing optical wavelength routers | Song Peng | 2007-11-20 |
| 7292786 | Method and system for a re-configurable optical multiplexer, de-multiplexer and optical add-drop multiplexer | Giovanni Barbarossa, Song Peng | 2007-11-06 |
| 7280720 | Apparatus, system and method for a tunable optical filter and channel dropping de-multiplexer | Giovanni Barbarossa, Song Peng | 2007-10-09 |
| 7245328 | Apparatus and method for controlling extinction ratio in a liquid crystal polarization controller optical switch | Haijun Yuan, Song Peng | 2007-07-17 |
| 7218857 | Method, apparatus and system for a re-configurable optical add-drop multiplexer | — | 2007-05-15 |
| 7194167 | Method and apparatus for a fiber optic housing and aligning device | Giovanni Barbarossa, Xingzhong Zhao, William Z. Guan, Di Yang, Xiaojun Wang | 2007-03-20 |
| 7073952 | Stable mechanical devices for precision optical alignment and packaging | Frank Wu, Jian Xu, Song Peng | 2006-07-11 |
| 7044648 | Method and apparatus for a fiber optic housing and aligning device | Giovanni Barbarossa, Xingzhong Zhao, William Z. Guan, Di Yang, Xiaojun Wang | 2006-05-16 |
| 6947628 | Dynamic wavelength-selective optical add-drop switches | Song Peng | 2005-09-20 |
| 6728488 | Optical systems employing anamorphic beams and diffraction gratings | Song Peng | 2004-04-27 |
| 6594082 | Optical wavelength router using reflective surfaces to direct output signals | Song Peng | 2003-07-15 |
| 6546159 | Method and apparatus for compensating differential group delay | Song Peng | 2003-04-08 |
| 6529307 | Selective intensity modulation of channels in a multiplexed optical communication system | Song Peng | 2003-03-04 |