Optical losses of Al-free lasers for λ=0.808 and 0.98 μm

H. Yi*, J. Diaz, B. Lane, M. Razeghi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2983-2985
Number of pages3
JournalApplied Physics Letters
Issue number20
StatePublished - Nov 11 1996

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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