Crenelated-ridge waveguide laser
US4400813A · kind A · utility
10Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jul 20, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1228
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The ridge-structure in a ridge waveguide laser is notched at periodic intervals to produce a longitudinally crenelated ridge, and the electrode on the ridge side of the laser is alloyed only to the topmost surfaces of the ridge. As a result, the active region of the laser is pumped only in the regions that are underneath the topmost surfaces of the ridge, and the laser is caused to prefer the longitudinal modes whose maxima coincide with the spatial Fourier components of the pumped regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.