Wavelength converter for binary optical signals
US5978129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Feb 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/215
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a wavelength converter including an interferometer structure for delivering an output optical signal, in which converter a first branch contains a first semiconductor optical amplifier and a second branch contains a second semiconductor optical amplifier, the amplifiers being coupled to a common probe laser, and said first amplifier being organized to receive a modulating input signal, said converter including regulator means for acting on the total optical power delivered to said amplifier in response to a negative feedback signal representative of the extinction ratio of the output signal. The invention is applicable to making routing systems using wavelength-division multiplexing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.