Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7606452 | Optical fiber fundamental mode field expander | Bernard Y. Malo, Stephen J. Mihailov | 2009-10-20 |
| RE39865 | Method of fabricating Bragg gratings using a silica glass phase grating mask and mask used by same | Kenneth O. Hill, Bernard Y. Malo, Derwyn C. Johnson | 2007-10-02 |
| 6374016 | Polarization insensitive grating in a planar channel optical waveguide and method to achieve the same | Jacques Albert, Kenneth O. Hill, Derwyn C. Johnson, Stephen J. Mihailov | 2002-04-16 |
| 6256435 | Polarization insensitive grating in a planar channel optical waveguide and method to achieve the same | Jacques Albert, Kenneth O. Hill, Derwyn C. Johnson, Stephen J. Mihailov | 2001-07-03 |
| 5495548 | Photosensitization of optical fiber and silica waveguides | Bernard Y. Malo, Jacques Albert, Derwyn C. Johnson, Kenneth O. Hill | 1996-02-27 |
| 5367588 | Method of fabricating Bragg gratings using a silica glass phase grating mask and mask used by same | Kenneth O. Hill, Bernard Y. Malo, Derwyn C. Johnson | 1994-11-22 |
| 5216739 | Method of creating an index grating in an optical fiber and a mode converter using the index grating | Kenneth O. Hill, Bernard Y. Malo, Derwyn C. Johnson | 1993-06-01 |
| 5150439 | Simplified WDM fused fiber coupler design | Kenneth O. Hill, Bernard Y. Malo, Derwyn C. Johnson | 1992-09-22 |
| 5104209 | Method of creating an index grating in an optical fiber and a mode converter using the index grating | Kenneth O. Hill, Bernard Y. Malo, Derwyn C. Johnson | 1992-04-14 |
| 4963177 | Method for making a grating assisted optical waveguide device | Seyed-Iraj Najafi, Kenneth O. Hill, Derwyn C. Johnson | 1990-10-16 |
| 4900119 | Wavelength selective optical devices using optical directional coupler | Kenneth O. Hill, Derwyn C. Johnson, Sylvain Faucher | 1990-02-13 |
| 4895423 | Fabrication technique for low-loss fused taper directional couplers and pressure sensor produced thereby | Kenneth O. Hill, Sylvain Faucher, Derwyn C. Johnson | 1990-01-23 |
| 4586784 | Modal-insensitive biconical taper couplers | Yves Tremblay, Brian S. Kawasaki | 1986-05-06 |