Abstract
We have studied the gain characteristics of gain-guided quantum well II–VI laser diodes by measuring the amplified spontaneous emission spectra under several pulsed conditions. The temperature rise during one current pulse affects the gain characteristics and the L-I characteristics. The net modal gain at constant peak current increases with the pulse width. The peak gain for long pulses shows a superlinear dependence on injection current. In this case, the L-I curve is very steep above threshold and sometimes shows an internal quantum efficiency of more than unity. This leads to an underestimation of the internal cavity loss giving a value inconsistent with the one obtained from the gain spectra. With short pulse currents (<200 ns), the peak gain shows a weak sublinear dependence on injection current. The cavity losses obtained from the gain spectra and the L-I characteristics at short pulses are consistent. As a result, we obtain the intrinsic gain characteristics of gain-guided quantum well II–VI laser diodes.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 8:27 a.m.) |
Deposited | 1 year, 7 months ago (Feb. 3, 2024, 6:55 a.m.) |
Indexed | 1 year, 7 months ago (Feb. 3, 2024, 11:04 a.m.) |
Issued | 28 years, 8 months ago (Dec. 16, 1996) |
Published | 28 years, 8 months ago (Dec. 16, 1996) |
Published Print | 28 years, 8 months ago (Dec. 16, 1996) |
@article{Yoshida_1996, title={Gain characteristics of gain-guided II–VI laser diodes}, volume={69}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.117561}, DOI={10.1063/1.117561}, number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Yoshida, H. and Gonno, Y. and Nakano, K. and Taniguchi, S. and Hino, T. and Ishibashi, A. and Ikeda, M. and Chuang, S. L. and Hegarty, J.}, year={1996}, month=dec, pages={3893–3895} }