Abstract
High-performance narrow-stripe InGaAs-GaAs quantum-well lasers with integral buried AlAs native-oxide layers have been fabricated. AlAs native-oxide layers above and below waveguide region were employed for current and optical confinement to form narrow-stripe lasers. A low temperature (400 °C) anisotropic wet oxidation technique was used to selectively oxidize AlAs layers in the epitaxial structure. The devices demonstrated continuous wave threshold currents of 3.5 mA, external quantum efficiencies of 82%, and a characteristic temperature of 133 K for 1.8 μm-wide aperture, 400 μm-long devices. Threshold currents of 1.7 mA were obtained by applying HR/HR coatings.
| Original language | English |
|---|---|
| Pages (from-to) | 176-178 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 8 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1996.02 |
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