Increased Catastrophic-Optical-Damage Output Power for High-Power Semiconductor Lasers Coated with High-Refractive-Index Films
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概要
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Mirror facet coating with a high-refractive-index film such as TiO_2 and Ta_2O_5 is proposed to obtain high-power shortwavelength semiconductor lasers. A drastic increase in the output power attainable before catastrophic optical damage occurs is theoretically predicted for such a laser without the need to decrease facet reflectivity. This increase is shown to originate from destructive interference of laser light fields in the vicinity of the coated mirror facet when the film's refractive index is larger than the square root (〓1.8-1.9) of the laser's effective refractive index.
- 社団法人応用物理学会の論文
- 1998-06-01
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- Increased Catastrophic-Optical-Damage Output Power for High-Power Semiconductor Lasers Coated with High-Refractive-Index Films