Performance characteristics of GaInAs/GaAs large optical cavity quantum well lasers
- 11 April 1991
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 27 (8) , 680-682
- https://doi.org/10.1049/el:19910425
Abstract
The fabrication and performance characteristics of ridge-waveguide GaInAs/GaAs quantum-well lasers with large optical cavity (LOC) designs are reported. As expected, lasers with very large optical cavity have narrow far-field width (22°) perpendicular to the junction. However, due to small confinement factor, they also have higher threshold current (36 mA). The LOC design has been optimised to produce lasers with low threshold current (12 mA), high efficiency (0.45 mW/mA/facet) and narrow far field divergence (32° × 12°). These lasers operate in the fundamental transverse mode to output powers of 130mW/facet.Keywords
This publication has 1 reference indexed in Scilit:
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