Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597494 | Polarization maintaining optical fiber amplifier and optical amplifier | Takeshi Segi, Tomoharu Kitabayashi | 2003-07-22 |
| 6563628 | Gain tilt free optical fiber amplifier in a wide dynamic gain range | Tomoharu Kitabayashi, Takafumi Kashima | 2003-05-13 |
| 6542288 | Optical amplifier utilizing rare earth element-doped optical fibers for temperature compensation | Takeshi Segi, Takuya Aizawa, Takafumi Kashima | 2003-04-01 |