Optical transmission apparatus
US7660535B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2006 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Dec 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Before being incident to a nonlinear medium, a short pulse is intensity-modulated with a bit string pattern, and then made incident. When the pulse light corresponding to a bit value ‘0’ is incident to the nonlinear medium, the pulse light is intensity-modulated so that the spectral width thereof is not spread to a predetermined spectral region due to the nonlinear phenomena, thereby producing a light state of being not output from an optical demultiplexer. Meanwhile, when the pulse light corresponding to a bit value ‘1’ is incident to the nonlinear medium, the pulse light is intensity-modulated so that the spectral width thereof is spread to the predetermined spectral region due to the nonlinear phenomena, thereby producing a light state of being output from the optical demultiplexer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.