Multilayer dielectric reflector included in proposed surface-emitting, distributed-feedback, grating semiconductor laser (e.g., a GaAlAs device). Contributes to efficiency and output power of laser by reducing amount of light entering substrate, where wasted by absorption. Index of refraction in reflector sublayers alternates between higher and lower value. Higher value less than effective index of refraction of waveguide layer.
Semiconductor Laser With Multilayer Dielectric Reflector
NASA Tech Briefs ; 15 , 2
1991-02-01
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Englisch
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