Method for generating a strip waveguide
US4818722A · kind A · utility
15Cited by
12References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | May 26, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S438/955
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for generating a strip laser in a buried hetero-structure composed of layers, wherein a raised strip is etched out of the layer structure and the strip is laterally etched with an erosion melt. The lateral edges of the laser active layer are protected by leaving them covered with a portion of the layer dissolved out by the erosion melt. The deposits thus remaining are used to initiate the generation of an epitaxial layer which extends laterally from the laser-active layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.