All-fiber depolarizer
US6760495B2 · kind B2 · utility
5Cited by
8References
13Claims
0Family size
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Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2843
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An all-fiber optical depolarizer is provided in which polarized light is controllably injected into a polarization beam splitter at a 45° angle. The beam splitter is combined with a loop made of standard non-birefringent fiber through which one of the polarizations split by the beam splitter circulates. The loop has a length greater than the coherence length of the light source. The interaction of the beam splitter and the loop produces incoherent depolarized light at the output transmission port of the beam splitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.