Research Papers

Effect of self-phase modulation on the instabilities of quantum-cascade lasers

[+] Author Affiliations
Jing Bai

University of Minnesota, Department of Electrical and Computer Engineering, 1023 University Drive, Duluth, MN 55812

J. Nanophoton. 4(1), 043519 (October 29, 2010). doi:10.1117/1.3518086
History: Received June 17, 2010; Revised October 17, 2010; Accepted October 25, 2010; October 29, 2010; Online October 29, 2010
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Abstract

Theoretical analysis of lasing instability in quantum-cascade lasers was carried out. A mid-infrared quantum-cascade laser structure with triple resonance levels was chosen as the prototype of the lasing medium with high Kerr nonlinearity from optical transitions. The self-phase modulation effect induced by Kerr nonlinearity was found to possibly change the unstable frequency domain significantly, i.e., not only broaden the unstable domain but also drive it from single-mode to multi-mode. The instability mechanisms of quantum-cascade lasers include one like the coherent multi-mode Rishen-Nummedal-Graham-Haken instability and the spatial-hole-burning-induced single-mode instability.

© 2010 Society of Photo-Optical Instrumentation Engineers

Topics

Lasers ; Modulation

Citation

Jing Bai
"Effect of self-phase modulation on the instabilities of quantum-cascade lasers", J. Nanophoton. 4(1), 043519 (October 29, 2010). ; http://dx.doi.org/10.1117/1.3518086


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