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US 6,687,280 B1Granted
Vertical-cavity surface-emitting laser device
AssigneeNEC Corporation
InventorMikihiro Kajita
Life of this patent
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Abstract
This invention provides a vertical-cavity surface-emitting laser device comprising a surface light-emitting part comprising a cavity consisting of two multilayer reflectors and an active region between them and a waveguide part for introducing induced light into the surface light-emitting part. The device is substantially independent of a temperature and allows a wavelength to be controlled after manufacturing the device.
Claims5
A vertical-cavity surface-emitting laser device comprising:
- a surface light-emitting part emitting light at a laser oscillation wavelength, said surface light-emitting part comprising a cavity comprised of two multilayer reflectors and an active layer between the two multilayer reflectors;
- and
- a laterally separated waveguide part comprising the active layer, said laterally separated waveguide part configured to introduce induced light into the surface light-emitting part thereby modifying the laser oscillation wavelength.
Dependencies are inferred from the claim text.