Loss stabilized buried heterostructure laser

Details Loss stabilized buried heterostructure laser Loss stabilized buried heterostructure laser

1981-06-12

1984-11-06

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

357 17, 372 46, H01S 319

Patent

active

044816316

ABSTRACT:
A buried heterostructure laser which obtains lowest mode operation by larger differences in loss between the lowest and higher order modes is described. The loss is achieved by interface scattering between the mesa and the burying layer. The scattering losses increase with refractive index discontinuity, interface roughness and decreasing mesa width. Stabilization results because scattering losses increase rapidly with the order of the transverse modes.

REFERENCES:
patent: 4121177 (1978-10-01), Tsukada
Casey et al., "GaAs-Al.sub.x Ga.sub.1-x As heterostructure laser with separate optical and carrier confinement", J.A.P. vol. 45, No. 1, Jan. 1974, pp. 322-333.

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