Semiconductor optical device having asymmetric ridge waveguide and method of making same
US7076130B2 · kind B2 · utility
2Cited by
4References
33Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 8, 2003 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In order to reduce the possibility of a laser operating in multiple transverse modes at high power, the laser is provided with laterally asymmetric losses that discriminate against modes higher than the fundamental mode. One approach to doing this is form an asymmetric ridge waveguide in the laser, that allows the light of the higher order modes to leak out of the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.