Techniques to guide optical signals
US6842572B2 · kind B2 · utility
6Cited by
5References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Dec 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12033
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device that compensates for focal point drift of transmitted optical beams caused by ambient temperature changes by using a position adjuster to adjust the alignment of channels of a target planar lightwave circuit (“PLC”). The channels of the target PLC may taper open. In one implementation, the device may also use a birefringence plate to compensate for polarization dependent focal point drift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.