Tunable multi-mode laser
US9013785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Aug 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A widely tunable multi-mode semiconductor laser containing only two electrically active sections, being an optical gain section and a tunable distributed Bragg reflector section adapted to reflect at a plurality of wavelengths, wherein the gain section is bounded by the tunable distributed Bragg reflector section and a broadband facet reflector, and wherein the tunable distributed Bragg reflector section comprises a plurality of discrete segments capable of being selectively tuned, wherein the reflection spectra of one or more segments of the tunable distributed Bragg reflector section can be tuned lower in wavelength to reflect with the reflection spectrum of a further segment of the tunable distributed Bragg reflector section to provide a wavelength range of enhanced reflectivity. An optical transmitter comprising a light source that is such a widely tunable multi-mode semiconductor laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.