All-fiber linear design depolarizer
US6847744B2 · kind B2 · utility
2Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Mar 27, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Mar 27, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29352
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An all-fiber depolarizer having a linear design includes a directional coupler associated with a polarization combiner. Linear light is pumped into the coupler where its intensity is split in two. Between the coupler and the combiner there is included an optical delay and the polarization of one intensity is made orthogonal to the other, as they enter the polarization combiner. The combiner combines the orthogonal polarizations and the light exits by an output in a depolarized state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.