Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9025958 | Planar lightwave circuit optical multiplexer for non-sequential wavelength channels | Leonard Jan-Peter Ketelsen | 2015-05-05 |
| 6529649 | Optical filter with improved crosstalk rejection | — | 2003-03-04 |
| 6445477 | Self-monitored light source for stable wavelength optical communications | Christi Kay Madsen | 2002-09-03 |
| 6253000 | Optical space switches using multiport couplers | Christi Kay Madsen | 2001-06-26 |
| 5946331 | Integrated multi-wavelength transmitter | Martin R. Amersfoort, Chung-En Zah | 1999-08-31 |
| 5748811 | Optical switch | Martin R. Amersfoort | 1998-05-05 |
| 5732179 | Birefringence-free semiconductor waveguide | Catherine Genevieve Caneau, Ghie-Hugh Song | 1998-03-24 |
| 5629992 | Passband flattening of integrated optical filters | Martin R. Amersfoort | 1997-05-13 |
| 5351262 | Multi-stripe array grating integrated cavity laser | Kai R. Poguntke | 1994-09-27 |