Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5442479 | Fiber-optic amplifier with a facility for monitoring the pump power and input power | Jurgen Otterbach | 1995-08-15 |
| 5377284 | Interferometric optical switch | — | 1994-12-27 |
| 5195149 | Fiber optic amplifier | Thomas Pfeiffer, Rolf Rossberg | 1993-03-16 |