Power stabilization of semiconductor laser harmonic frequency conversion modules
US7826132B2 · kind B2 · utility
0Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2008 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Jan 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a fiber laser and harmonic frequency conversion module incorporating a 90 degree Polarization Maintaining (PM) fiber fusion splice therebetween for providing temperature insensitive power stabilization. The present invention has found that incorporating at least one 90 degree splice of the transmission axes of the PM fiber, coupling a fast axis to a slow axis, to create substantially equal optical path lengths of the two transmission axes of the fiber coupling can nearly eliminate output amplitude fluctuation within a practical operating temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.