Optical integrated circuit including junction laser with oblique mirror
US4136928A · kind A · utility
34Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | May 6, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F55/255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical integrated circuit includes a double heterostructure (DH) junction laser and a DH detector formed on an underlying dielectric waveguide. Coupling from the laser to the waveguide and then into the detector is achieved by means of oblique crystal facets formed at the extremities of the laser and detector active regions by a two-step etching process. In the laser the oblique surfaces also provide sufficient optical feedback to define the laser resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.