Transverse-pressure-controlled fiber devices
US6754404B2 · kind B2 · utility
17Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Dec 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/274
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Implementations of a polarization control method and apparatus are provided. In one implementation, a device uses super-polished squeezing surfaces to apply pressure against a polyimide coated fiber thereby minimizing micro-bending effects that cause losses in the fiber. Special control circuitry may be used to maintain a driving source of piezo-electrics that control the squeezing surfaces at a resonant frequency, thereby minimizing the voltages needed to drive the piezo-electrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.