Technique for optically converting wavelengths in a multi-wavelength system
US6999682B2 · kind B2 · utility
2Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2000 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Nov 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A technique for optically converting wavelengths in a multi-wavelength system is disclosed. In one embodiment, wherein the multi-wavelength system has W wavelength channels, wherein W=2N, the technique is realized by selectively directing a received frequency channel corresponding to a respective wavelength channel based upon a predetermined frequency mapping. Then, the frequency of the selectively directed frequency channel is shifted at least once by an amount defined by ±2iΔf, wherein Δf is the frequency spacing between adjacent frequency channels, and i=0, 1, . . . N−1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.