Optical multi/demultiplexing circuit equipped with phase generating device
US7085438B2 · kind B2 · utility
13Cited by
6References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2003 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Mar 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical multi/demultiplexing circuit includes at least one phase generating optical coupler and an optical delay line coupled to the phase generating optical coupler. The phase generating optical coupler consists of at least one input and at least two outputs. At least one of the phase generating optical coupler has a wavelength dependent or frequency dependent output phase difference in the passband of the circuit so that it can change the transmittance characteristics of the optical multi/demultiplexing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.