N. N. Ablyazov, D. Z. Garbuzov, V. B. Khalfin, “Possibility of increasing the maximum radiation intensity in heterolasers with a wide waveguide”, Kvantovaya Elektronika, 1990, Volume 17, Number 11,Pages <nobr>1411

This article is cited in 1 paper

Lasers

Possibility of increasing the maximum radiation intensity in heterolasers with a wide waveguide

N. N. Ablyazov, D. Z. Garbuzov, V. B. Khalfin

Abstract: An estimate is obtained of the maximum output power P ^c_W of an injection semiconductor laser per unit width of the active stripe. It is assumed that the power is limited by the optical strength of the mirrors. Several variants of heterostructures with one or several quantum-well GaAs layers in an extended AlGaAs cavity are considered. It is shown that the optimal structure ensuring the maximum radiation power (P ^c_W ~ 2 X 10³ W/cm) has a few (bet ween one and three) wells located at the center of a waveguide ~ 3 μm wide. The maximum permissible current density above which the damage to mirrors becomes catastrophic amounts to ~ 10 kA/cm².

UDC: 621.373.826.038.825.4

PACS: 42.55.Px, 42.60.Jf, 42.79.Bh

Received: 08.12.1989
Revised: 18.04.1990