Pump laser with low grating reflectivity
US6400746B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Aug 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4203
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber grating stabilized pump laser achieves power stability with a relatively low grating reflectivity of 1.0 to 2.3%. Substantial laser diode output facet reflectivity is provided, between 3.0 and 5.5%. When the optical fiber system provides for no polarization control between the grating and the diode laser, the power reflectivity of the grating, is preferably between 1.7 and 2.3%. The power reflectivity of the laser diode output facet is preferably between 3.4 and 4.9%. In contrast, when provisions are made for polarization control between the grating and laser diode, even lower grating reflectivities are possible, between 1.0 and 2.3%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.