Published December 30, 1996
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Measurement of the interwell carrier transport lifetime in multiquantum-well optical amplifiers by polarization-resolved four-wave mixing
Abstract
Polarization-resolved four-wave mixing spectroscopy is used to study interwell carrier dynamics in an alternating-strain multiquantum-well optical amplifier. The experimental data are found to be in good agreement with a simple model based on quantum capture/escape and diffusion processes. The results suggest that the interwell transport in this structure is mainly limited by carrier escape, and give an estimate of 16 ps for the overall transport lifetime.
Additional Information
©1996 American Institute of Physics. (Received 27 August 1996; accepted 30 October 1996) The authors acknowledge R. M. Jopson for coating the device used in these experiments, also D. Geraghty and R. B. Lee for stimulating discussions. This work was supported by ARPA (Contract No. DAAL 01-94-K-03430) and the National Science Foundation (Grant No. ECS-9412862).Files
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