WDM channel equalization and control
US6487336B1 · kind B1 · utility
39Cited by
6References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2852
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Devices that couple variable attenuators to a single WDM multiplexer to individually adjust and control the power levels of different WDM channels, e.g., substantially equalizing the power levels of the channels. Optical reflection and in-fiber variable attenuators are implemented to simplify the device structure and reduce cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.