Optical losses of Al-free lasers for λ=0.808 and 0.98 μm
- 11 November 1996
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 69 (20) , 2983-2985
- https://doi.org/10.1063/1.117751
Abstract
In this work, we study the origin of the optical losses in Al‐free InGaAsP/GaAs (λ=0.808 μm) and InGaAs/GaAs/InGaP (λ=0.980 μm) lasers. Theoretical modeling and the experimental results indicate that the scattering of the laser beam by refractive index fluctuation in the alloys is the dominant loss in our lasers, and the loss due to the free‐carrier absorption and scattering by interface roughness are negligible.Keywords
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