Light amplifier device
US6473225B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Apr 29, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In order to be able to use a semiconductor light amplifier of conventional type and operating under gain saturation conditions while nevertheless providing constant gain for an optical signal to be amplified, the device comprises means for producing a compensation light wave and coupling means for injecting the optical signal to be amplified and the compensation light wave into the amplifier. The compensation light wave presents amplitude modulation such that when combined with the optical signal to be amplified the overall amplitude modulation is eliminated or at least attenuated. The device is applicable to optical transmission systems operating at a single wavelength or with wavelength division multiplexing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.