Phase-locked semiconductor laser device
Patent
·
OSTI ID:5318795
A semiconductor laser device is provided with a semiconductor substrate and at least a semiconductor assembly for optical confinement formed on the substrate which includes an active layer and cladding layers. A first electrode is disposed on the semiconductor assembly and a second electrode is disposed on the semiconductor substrate. To provide a phase-locked semiconductor laser device of high quality, a plurality of regions are provided in the semiconductor assembly which, in effect, cause a variation of a complex refractive index for a laser beam in a direction intersecting with a traveling direction of the laser beam. These regions can be discretely disposed over or under the active layer and give rise to a nonlinear interaction between adjacent laser emission regions formed by the plurality of regions.
- Assignee:
- Hitachi Ltd. (Japan)
- Patent Number(s):
- US 4509173
- OSTI ID:
- 5318795
- Country of Publication:
- United States
- Language:
- English
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