Self-aligned optical waveguide to laser structure and method for making the same
US5259049A · kind A · utility
42Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1992 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Apr 21, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Automatic alignment of an optical waveguide to a ridge waveguide laser is accomplished by transferring the ridge structure of the laser to a substrate by etching a mirror groove. The transferred ridge structure serves as a base for the deposition of waveguide layers. The thickness of the waveguide layers are controlled during the deposition such that the waveguide core is laterally and vertically aligned to the lasing active layer of the laser structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.