Reflector for directing front facet light to monitor diode
US6459710B1 · kind B1 · utility
5Cited by
10References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser system includes a reflector on the lid that directs light emitted from the front facet to the monitoring diode. Thus, even when the diode is installed behind the semiconductor laser chip, and as a result receives back facet light, the ratio of front facet to back facet light received by the monitoring diode is increased due to the operation of the reflector. This configuration improves power tracking in Bragg grating stabilized semiconductor laser systems, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.