Writing waveguides with an arbitrary Bragg wavelength
US6904202B1 · kind B1 · utility
1Cited by
9References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02133
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Bragg grating may be written at an arbitrary wavelength without extensive recalibration or reconfiguration of the writing equipment in some embodiments. A pair of writing beams may be used to expose a waveguide. The crossing angles of the writing beams may be adjusted. In one embodiment, circular wedges in each writing beam may be rotated about their axes to alter the crossing angle. In another embodiment, acousto-optic Bragg cells may be utilized to change the writing angle of the writing beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.