Tunable laser
US8295315B2 · kind B2 · utility
17Cited by
7References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2008 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | May 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention concerns tunable distributed Bragg reflector (DBR) semiconductor lasers, in particular a DBR laser with a branched optical waveguide 5 within which a plurality of differently shaped lasing cavities may be formed, and a method of operation of such a laser. The laser may comprise a phase control section (418), gain section (420, 422), a sampled grating DBR (412) giving a comb-line spectrum and two tunable, chirped DBRs (414, 416) for broadband frequency training and a coupling section (410).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.