Optical resonant device
US5018831A · kind A · utility
5Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1988 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jul 6, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/08009
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical resonant device comprises a laser diode (14), a graded-index collimating lens (11) and a prism grating (17). The lens (11) is rigidly connected to the prism grating (17). Coarse tuning by adjustment of the angle of incidence of light on the grating (17) is achieved by laterally offsetting the laser (14) relative to the central optical axis C of the lens (11). The grating (17) is angled relative to the optical axis C so that the tuned position of the laser (14) is at or close to the optical axis C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.