Strain-induced performance improvements in long-wavelength, multiple-quantum-well, ridge-waveguide lasers with all quaternary active regions
- 1 April 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 4 (4) , 299-301
- https://doi.org/10.1109/68.127193
Abstract
A comparison between the performance of strained (1.5% compression) and unstrained multiple-quantum-well (MQW), ridge-waveguide lasers with identical geometrical structures and similar emission wavelengths is reported. Results show that significant improvements in the characteristic temperature (T/sub 0/), maximum output power, maximum operating temperature, and internal quantum efficiency can be obtained through the applications of strain. Accordingly, for lasers employing strained active regions, an improved characteristic temperature, T/sub 0/, of 85 K and high-maximum lasing temperature of 140 degrees C were obtained under pulsed operating conditions. These values are the highest ever observed for long-wavelength lasers with all-quaternary strained MQW active regions.<>Keywords
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