Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/95886
Title: Linewidth broadening caused by intrinsic temperature fluctuations in quantum cascade lasers
Authors: Liu, T.
Wang, Qi Jie
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
Issue Date: 2012
Source: Wang, Q. J., & Liu, T. (2012). Linewidth broadening caused by intrinsic temperature fluctuations in quantum cascade lasers. Proceedings of SPIE-Quantum Sensing and Nanophotonic Devices IX, 8268.
Abstract: The intrinsic narrow linewidth of quantum cascade lasers (QCLs) promises wide applications such as highsensitive trace-gas detection. However, so far limited work has been reported in intrinsic linewidth characteristics of QCLs. In this paper, we theoretically investigate the linewidth broadening caused by intrinsic temperature fluctuations in both mid-infrared and Terahertz QCLs. When microscopic features of the refractive index variations associated with the intersubband transitions and energy level broadening in mid-infrared QCLs are considered, the linewidth broadening increases up to a few hundred Hz in mid-IR QCLs.
URI: https://hdl.handle.net/10356/95886
http://hdl.handle.net/10220/10069
DOI: 10.1117/12.907178
Rights: © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE-Quantum Sensing and Nanophotonic Devices IX and is made available as an electronic reprint (preprint) with permission of Society of Photo-Optical Instrumentation Engineers (SPIE). The paper can be found at the following official DOI: [http://dx.doi.org/10.1117/12.907178].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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