Laser tuning by spectrally dependent spatial filtering
US6970484B2 · kind B2 · utility
5Cited by
11References
26Claims
0Family size
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Key dates
| Filing date | Apr 13, 2005 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Apr 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.