Method and system for use in optical code division multiple access
US7339717B2 · kind B2 · utility
5Cited by
6References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Oct 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and device are provided for automatically generating a key and a conjugate key to be used in an optical code division multiple access system. The method comprises applying a down conversion process to pump input light to thereby produce down converted broadband signal and idler fields that are complex conjugates of each other. The signal and idler fields thus serve as the key and its conjugate. Also provided according to the invention is a method for use in coding/decoding a signal in an optical code division multiple access system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.