Optical channelizer utilizing resonant microsphere coupling
US7174064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Oct 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first de-multiplexed and each optical carrier is then extracted from the data using an optical channelizing technique. The optical frequency of each of the extracted optical carriers is then shifted by an amount equal to the desired wireless carrier frequencies in the broadband wireless channels. Optical heterodyning of the frequency-shifted extracted lightwave carriers with the original data-containing optical signals, which are mutually in phase coherence, in a photodetector results in a set of wireless carriers each modulated with the data carried by the corresponding optical channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.