Wavelength-tunable light source and wavelength-division multiplexed transmission system using the source
US7327957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Feb 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a wavelength-tunable light source whose output wavelength can be externally controlled and a wavelength-division multiplexed transmission system using the source.A wavelength-tunable light source in accordance with the present invention is constituted to be able to vary the output wavelength of a Fabry-Perot laser diode, that is wavelength-locked to an injected light, by controlling the wavelength of the injected light.A wavelength-tunable light source in accordance with the present invention provides comparatively large output power and excellent economic features.The present invention also presents a wavelength-division multiplexed transmission system using the wavelength-tunable light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.