Wavelength stabilized laser sources using feedback from volume holograms
US5691989A · kind A · utility
195Cited by
57References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 14, 1993 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Sep 14, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser utilizes feedback from a volume holographic grating used as a wavelength standard to lock the laser output wavelength to its desired value. This feedback can be non-optical, wherein the holographic filter output is used to actively control the wavelength through an external control mechanism. This feedback can also be optical, wherein a volume hologram reflection grating is used to generate optical feedback into the laser gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.