Optical pumping method for gain-media with polarization sensitive absorption
US7502404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | May 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1673
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for optically pumping a gain-medium with partially polarized or unpolarized pump-light having a wavelength at which that gain-medium has an absorption that is dependent on the polarization plane of the pump-light is disclosed. The pump-light is directed into the gain-medium. The strongest-absorbed polarization component of the pump-light is substantially absorbed and the weakest-absorbed polarization component is partially transmitted by the gain-medium. The polarization plane of the transmitted component is rotated through 90 degrees and the polarization-rotated pump-light is directed back into the gain-medium, wherein it is substantially absorbed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.