Injection laser assembly incorporating a monitor photosensor
US5668823A · kind A · utility
6Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Nov 17, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02251
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An injection laser assembly mounted upon a crystal substrate [10] employing a back facet monitor is disclosed. A graded index lens [34] focuses light from the, typically, high in diversion and low intensity rays output from the back facet of the laser [30]. To allow repeatable and efficient coupling the graded index lens [34] is mounted within a groove defined in the crystal. Several configurations for mounting a photodiode sensor [P1,P2] are possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.