Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7167490 | Optical gain apparatus with pump source wavelength control | Richard R. Craig, Jay A. Skidmore, Vincent V. Wong | 2007-01-23 |
| 6603896 | Power fiber amplifier with flat gain | Stuart MacCormack, David M. Giltner | 2003-08-05 |
| 6553043 | Overcoming L-I kink effects in a laser diode feedback control | Michael Bortz, Bernard Fidric, John DeAndrea | 2003-04-22 |
| 6388806 | Upgradable, gain flattened fiber amplifiers for WDM applications | Paul N. Freeman, Stephen G. Grubb, Daniel Ratoff | 2002-05-14 |
| RE37354 | Semiconductor laser with integral spatial mode filter | David F. Welch, Donald R. Scifres | 2001-09-04 |
| 6236498 | Upgradable, gain flattened fiber amplifiers for WDM applications | Paul N. Freeman, Stephen G. Grubb, Daniel Ratoff | 2001-05-22 |
| RE37051 | Semiconductor gain medium with multimode and single mode regions | David F. Welch, Donald R. Scifres | 2001-02-13 |
| 6049554 | External cavity, continuously tunable wavelength source | Robert J. Lang, David F. Welch | 2000-04-11 |
| 5930029 | Optical fiber amplifier with optimized power conversion | — | 1999-07-27 |
| 5914978 | Semiconductor gain medium with multimode and single mode regions | David F. Welch, Donald R. Scifres | 1999-06-22 |
| 5894492 | Semiconductor laser with integral spatial mode filter | David F. Welch, Donald R. Scifres | 1999-04-13 |
| 5864574 | Semiconductor gain medium with a light Divergence region that has a patterned resistive region | David F. Welch, Donald R. Scifres | 1999-01-26 |
| 5771252 | External cavity, continuously tunable wavelength source | Robert J. Lang, David F. Welch | 1998-06-23 |
| 5703897 | Semiconductor laser with integral spatial mode filter | David F. Welch, Donald R. Scifres | 1997-12-30 |
| 5696779 | Wavelength tunable semiconductor laser with mode locked operation | David F. Welch, Donald R. Scifres | 1997-12-09 |
| 5651018 | Wavelength-stabilized, high power semiconductor laser | David F. Welch, Robert J. Lang, Donald R. Scifres | 1997-07-22 |
| 5602864 | Semiconductor laser with integral spatial mode filter | David F. Welch, Donald R. Scifres | 1997-02-11 |
| 5592503 | Semiconductor laser with integral spatial mode filter | David F. Welch, Donald R. Scifres | 1997-01-07 |
| 5539571 | Differentially pumped optical amplifer and mopa device | David F. Welch, Donald R. Scifres, Robert G. Waarts, Amos A. Hardy, Ross A. Parke | 1996-07-23 |
| 5537432 | Wavelength-stabilized, high power semiconductor laser | David F. Welch, Robert J. Lang, Donald R. Scifres | 1996-07-16 |
| 5499261 | Light emitting optical device with on-chip external cavity reflector | David F. Welch, Donald R. Scifres | 1996-03-12 |
| 5440576 | Branched MOPA device with phased array of amplifiers | David F. Welch, Robert J. Lang, Julian S. Osinski, Kenneth M. Dzurko, Robert G. Waarts | 1995-08-08 |
| 5392308 | Semiconductor laser with integral spatial mode filter | David F. Welch, Donald R. Scifres | 1995-02-21 |
| 5349602 | Broad-area MOPA device with leaky waveguide beam expander | Stephen O'Brien, David F. Welch | 1994-09-20 |
| 5255332 | NxN Optical crossbar switch matrix | David F. Welch, Donald R. Scifres, Robert G. Waarts, Amos A. Hardy, Stephen O'Brien | 1993-10-19 |