Laser that can be tuned quickly over a wide band
US6822981B2 · kind B2 · utility
8Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength-tunable laser consists of a resonant semiconductor cavity coupled to a sampled Bragg reflector grating having reflectivity peaks for N optical frequencies. The resonant cavity is formed of two opposite reflector members that are not wavelength selective and delimit an amplifier section coupled to a phase tuning section. The optical length of the cavity is adjustable electro-optically as a function of a control voltage applied to it. The laser can be tuned quickly over a wide band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.