Leaky-mode buried-heterostructure AlGaAs injection lasers
- 1 June 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 30 (11), 590-591
- https://doi.org/10.1063/1.89247
Abstract
Leaky‐mode buried‐heterostructure injection lasers are fabricated and operated successfully under pulse bias at room temperature. The lasers consist of a thin active layer confined by parallel n‐ and p‐AlxGa1−xAs layers with a high mole fraction of AlAs (x=0.4) and perpendicular p−‐AlyGa1−yAs layers with a low mole fraction of AlAs (y=0.25). It is shown that most of the laser power can be coupled out into the low‐loss perpendicular layers and emitted from the end facets, resulting in highly collimated beams with a beam divergence of about 1°.Keywords
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