Aging in tunable semiconductor lasers
US6829262B1 · kind B1 · utility
3Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2000 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process evaluates an aging property of a distributed Bragg reflector (DBR) laser. The process includes illuminating a Bragg grating of the distributed Bragg reflector (DBR) laser with light while the DBR laser is both supplied a tuning current and not lasing. The process also includes performing an action to the DBR laser responsive to a wavelength of a Bragg peak in a portion of the light reflected by the Bragg grating and a value of the tuning current supplied during the illuminating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.