Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9300400 | Communication through multiplexed one-dimensional optical signals | Xiang Liu, Peter J. Winzer, Andrew R. Chraplyvy, Chandrasekhar Sethumadhavan | 2016-03-29 |
| 8934786 | Communication through pre-dispersion-compensated phase-conjugated optical variants | Xiang Liu, Peter J. Winzer, Andrew R. Chraplyvy | 2015-01-13 |
| 8879922 | System, method and apparatus for high-sensitivity optical detection | Xiang Liu, Andrew R. Chraplyvy | 2014-11-04 |
| 8744275 | System, method, and apparatus for high-sensitivity optical detection | Xiang Liu, Thomas H. Wood | 2014-06-03 |
| 8682181 | System, method, and apparatus for high-sensitivity optical detection | Xiang Liu, Thomas H. Wood | 2014-03-25 |
| 8594515 | Digital phase conjugation for fiber-optic links | Xiang Liu, Chandrasekhar Sethumadhavan | 2013-11-26 |
| 8483575 | Apparatus and method for generating frequency-locked optical comb sources | Xiang Liu, Chandrasekhar Sethumadhavan | 2013-07-09 |
| 8204377 | System, method and apparatus for joint self phase modulation compensation for coherent optical polarization-division-multiplexed orthogonal-frequency division-multiplexing systems | Xiang Liu | 2012-06-19 |
| 8180227 | Digital coherent detection of multi-carrier optical signal | Xiang Liu, Chandrasekhar Sethumadhavan | 2012-05-15 |
| 7805075 | Methods of restoration in an ultra-long haul optical network | Angela Chiu, John Lester Strand | 2010-09-28 |
| 7526198 | Methods of restoration in an ultra-long haul optical network | Angela Chiu, John Lester Strand | 2009-04-28 |
| 7231147 | System and method of wavelength add/drop multiplexing having client configurability | Evan Lee Goldstein, Lih-Yuan Lin, Chuan Pu | 2007-06-12 |
| 7088676 | Methods and systems for fast restoration in a mesh network of optical cross connects | Robert Duncan Doverspike, Gokhan Sahin, John Lester Strand | 2006-08-08 |
| 6970417 | Methods and systems for fast restoration in a mesh network of optical cross connects | Robert Duncan Doverspike, Gokhan Sahin, John Lester Strand | 2005-11-29 |
| 6928244 | System and method of wavelength add/drop multiplexing having client configurability | Evan Lee Goldstein, Lih-Yuan Lin, Chuan Pu | 2005-08-09 |
| 6606428 | Angular-precision enhancement in free-space micromachined optical switches | Evan Lee Goldstein, Lih-Yuan Lin | 2003-08-12 |
| 6498673 | Micro-machined tunable delay line | Nicholas J. Frigo, Evan Lee Goldstein, Lih-Yuan Lin, Chuan Pu | 2002-12-24 |
| 6445485 | Micro-machine polarization-state controller | Nicholas J. Frigo, Evan Lee Goldstein, Lih-Yuan Lin, Chuan Pu | 2002-09-03 |
| 6317532 | Method and apparatus for low loss via geometrical optimization in free-space micro-machined optical switches | Lih-Yuan Lin, Evan Lee Goldstein | 2001-11-13 |
| 6292600 | Angular-precision enhancement in free-space micromachined optical switches | Evan Lee Goldstein, Lih-Yuan Lin | 2001-09-18 |
| 6271958 | Method and apparatus for curvature-resistant micro-mirror structures to reduce light beam loss in free-space micro-machined optical switches | Lih-Yuan Lin, Evan Lee Goldstein | 2001-08-07 |
| 6191877 | WDM optical fiber system using Raman amplification | Andrew R. Chraplyvy, Fabrizio Forghieri | 2001-02-20 |
| 6011892 | Optical fiber for wavelength division multiplexing | Andrew R. Chraplyvy | 2000-01-04 |
| 5907420 | System and method for mitigating cross-saturation in optically amplified networks | Andrew R. Chraplyvy, John C. Ellson, George W. Newsome, John Zyskind | 1999-05-25 |
| 5900968 | Method of fast gain control in WDM optical networks | Atul K. Srivastava, James W. Sulhoff, Yan Sun, John Zyskind | 1999-05-04 |