Tunable laser
US11177627B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 17, 2017 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Mar 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A discrete wavelength tunable laser capable of switching between a plurality of lasing channels of different wavelengths, the tunable laser comprising: a semiconductor optical amplifier (SOA); a wavelength demultiplexer (Demux), having a Demux input which receives the output from the SOA, and a plurality of Demux outputs, each Demux output defining a different spatial path for a respective lasing channel; each of the respective lasing channels being within the bandwidth of the SOA; a reflector located within each spatial path for reflecting light of the respective lasing channel; and a lasing suppression mechanism located within each lasing channel; wherein one or more desired lasing channels are selected by application of the lasing suppression mechanism in each spatial path other than the one or more spatial paths corresponding to the one or more desired lasing channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.