Small form factor variable optical attenuator with cladding mode suppressing fiber
US8737778B2 · kind B2 · utility
1Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4256
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to an electro-static variable optical attenuator suitable for use in a small form factor pluggable module. A short cladding suppressing fiber, such as a double clad optical fiber, dissipates attenuated light coupled to the cladding to reduce modal interference in the output light, while also reducing PDL and WDL introduced by the off set attenuation mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.