Monolithic semi-conductor laser producing blue, green and red output wavelengths
US5307359A · kind A · utility
17Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Dec 21, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0265
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A monolithic multi-color laser comprising a semiconductor laser formed on a substrate for lightwave generation. Means is provided for exciting the laser and means is provided on the substrate adjacent the laser to double the frequency of the lightwave emitted from the laser to produce output lightwaves having wavelengths in the photo-sensitive region of conventional silver halide photographic material. Further, an individually controllable frequency matched lightwave modulator is mounted on the substrate and is arranged to individually control the output lightwave in response to a data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.