Publication
Applied Physics Letters
Paper

Tunable coupled-quantum-well laser controlled by an electric field

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Abstract

We propose a novel field-effect semiconductor laser whose wavelength can be tuned by an electric field parallel to the growth direction of two tightly coupled quantum wells in the active region. We have demonstrated the concept by optically pumping a laser heterostructure whose active region consisted of two 50 Å GaAs wells separated by a 20 Å Ga0.77Al 0.23As potential barrier, in which, at 5 K, we have achieved tuning of the stimulated emission by more than 7 nm.

Date

01 Dec 1992

Publication

Applied Physics Letters

Authors

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