Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11062821 | Intermediate node to power submarine cable system | Andrew James Palmer-Felgate | 2021-07-13 |
| 10998977 | System and method of optical fiber communication | — | 2021-05-04 |
| 10404374 | Optical networking with support for unidirectional optical links | — | 2019-09-03 |
| 10320484 | Optical networking with support for unidirectional optical links | — | 2019-06-11 |
| 10313020 | Optical transmission system and related remote optically pumped amplifier (ROPA) and method | Do-Il Chang, Philippe Perrier | 2019-06-04 |
| 10114185 | Submarine optical fiber communications architectures | Gayathrinath Nagarajan, Stephen G. Grubb | 2018-10-30 |
| 9838136 | Optical transmission system and related remote optically pumped amplifier (ROPA) and method | Do-Il Chang, Philippe Perrier | 2017-12-05 |
| 8233216 | Optical amplifier bandwidth alteration | Do-Il Chang, Wayne S. Pelouch | 2012-07-31 |
| 8228598 | Optical amplifier with Raman and rare-earth-doped fiber amplifier both pumped efficiently using direct and reflected pump light | Do-Il Chang, Wayne S. Pelouch | 2012-07-24 |
| 8145062 | Optical amplifier capable of amplifying optical signals that traverse separate transmission fibers | Wayne S. Pelouch, Do-Il Chang | 2012-03-27 |
| 7567593 | System and method for fractional Raman order pumping in optical communication systems | Andrej B. Puc, Do-Il Chang, Andrzej Kaminski | 2009-07-28 |
| 7254337 | Band optical add/drop multiplexing | Mohammed N. Islam, Andrzej Kaminski, Carl Dewilde, Ozdal Boyraz | 2007-08-07 |
| 7068938 | Band optical add/drop multiplexing | Mohammed N. Islam, Andrzej Kaminski, Carl Dewilde, Ozdal Boyraz | 2006-06-27 |
| 6810214 | Method and system for reducing degradation of optical signal to noise ratio | Michel W. Chbat, Pavle Gavrilovic, Hyunchin Kim, Andrej B. Puc | 2004-10-26 |
| 6751371 | Method and apparatus for optical element management | Paul D. Pantages, Michel W. Chbat, Anand K. Gonuguntla, Zhi Feng | 2004-06-15 |
| 6262821 | Optical spectral multiplexer for inserting and extracting | Luc Berthelon, Christian Coeurjolly, Alain Noury, Philippe Perrier, Stephane Ruggeri | 2001-07-17 |
| 5612805 | Add-drop optical spectrum-division multiplexer | Philippe Perrier, Luc Berthelon | 1997-03-18 |
| 5295217 | Amplifier having an amplifying optical fiber | Jean-Francois Marcerou | 1994-03-15 |
| 5290103 | Optical fiber temperature sensor | Jean-Francois Marcerou, Jean Hervo, Serge Artigaud | 1994-03-01 |
| 5251061 | Telecommunications system having fiber optical amplifiers for transmitting signals over long distances | Jacques Auge, Jean-Pierre Blondel, Jean-Francois Marcerou | 1993-10-05 |
| 5185847 | Optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range | Jean-Francois Marcerou, Christian Le Sergent | 1993-02-09 |
| 5134517 | Erbium-doped fiber optical amplifier | Jean-Francois Marcerou, Jacques Auge | 1992-07-28 |
| 5106176 | Optical fiber for frequency conversion | Bertrand Poumellec, Jacques Auge, Jean-Michel Gabriagues | 1992-04-21 |
| 4959837 | Doped optical fiber laser amplifier | Josiane Ramos, Jacques Auge, Jean-Francois Marcerou, Bernard Jacquier, Jean-Claude Gacon | 1990-09-25 |
| 4763009 | Method and apparatus for remotely measuring the distribution of a physico-chemical parameter in a medium | Jean Robieux, Andre Tardy | 1988-08-09 |