Share Email Print
cover

Proceedings Paper

Impact of structural nonuniformity on the operation of AlGaInP lasers at high compressive strain
Author(s): Paul C. Mogensen; Peter M. Smowton; Peter Blood; Steve A. Hall; Ursel Bangert; Philip Dawson
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A set of single 10 nm GaxIn1-xP/(AlxGa1-x)0.52In0.48P quantum well lasers with compressively strained active regions have been grown by low pressure metal-organic chemical vapor deposition with the intention of examining the physical mechanisms which inhibit successful laser operation at high strain. In this paper we show that strain induced structural non-uniformity similar to Stranski-Krastanov growth is the primary mechanism for both the partial relief of strain and an increase in the optical losses which combine to cause an increase in the threshold current density as the compressive strain increases from 1% to 2%. In this paper we present a detailed analysis of the characteristics of the laser devices and using photoluminescence, electron microscopy, and x-ray microanalysis we relate the laser performance to the structural features we observe at high levels of mismatch between the active region and the material surrounding it.

Paper Details

Date Published: 7 July 1998
PDF: 12 pages
Proc. SPIE 3283, Physics and Simulation of Optoelectronic Devices VI, (7 July 1998); doi: 10.1117/12.316694
Show Author Affiliations
Paul C. Mogensen, Cardiff Univ. of Wales (Denmark)
Peter M. Smowton, Cardiff Univ. of Wales (United Kingdom)
Peter Blood, Cardiff Univ. of Wales (United Kingdom)
Steve A. Hall, Univ. of Manchester Institute of Science and Technology (United Kingdom)
Ursel Bangert, Univ. of Manchester Institute of Science and Technology (United Kingdom)
Philip Dawson, Univ. of Manchester Institute of Science and Technology (United Kingdom)


Published in SPIE Proceedings Vol. 3283:
Physics and Simulation of Optoelectronic Devices VI
Marek Osinski; Peter Blood; Akira Ishibashi, Editor(s)

© SPIE. Terms of Use
Back to Top