Optical waveguide filters
US5717799A · kind A · utility
15Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Oct 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29389
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A distributed Bragg reflection pass-band filter in an optical fiber waveguide is provided by grating elements arranged to provide improved flatness of reflection pass-band, a high rate of roll-off, and reduced amplitude side-bands by the use of chirp and apodisation profiles that are related such that the square of the coupling coefficient is substantially proportional to the rate of change of chirp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.