Monitoring power in optical networks
US6980724B2 · kind B2 · utility
0Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2003 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Feb 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12154
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical network may include a detector for detecting the power of each of a plurality of channels of a wavelength division multiplexed optical signal in one embodiment of the present invention. Each channel may be conveyed to an interface underneath a detector by way of a core formed in the substrate. The interface may include a trench with one side surface angled to form a reflector to reflect light upwardly to be detected by the detector. Other surfaces of said trench may also be reflective to reduce the cross talk between adjacent channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.