Abstract
The low-threshold separate-confinement (SC) InGaAsP/lnP and InGaAsP/GaAs lasers on the basis of LPE-grown heterostructures have been described in Refs. 1 and 2. Ultrathin active regions (da ~ 300 Å) of these heterostructures have been grown when the substrate was being quickly moved under the melt placed in the growth cell with a narrow output slot. Further perfection of these techniques made it possible to fabricate In- GaAsP/lnP and InGaAsP/GaAs single-quantum- well (SOW) SC lasers with an active layer thickness of ~100 Å and interfacing better than 20 Å.
© 1988 Optical Society of America
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