Single-mode distributed feedback semiconductor lasers
US7593446B2 · kind B2 · utility
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2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2008 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | May 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1231
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to the field of distributed feedback semiconductor lasers. More specifically, the invention makes it possible to develop single-mode distributed feedback lasers with a production rate close to 100% using a simple and robust technology. To this end, the invention involves introducing radiative losses on just one of the two predominant modes of a DFB laser obtained by index modulation by defining a particular refractive index profile of the active area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.