Improved two level model of mid-infrared quantum cascade lasers for analysis of direct intensity modulation response

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/219125

Title: Improved two level model of mid-infrared quantum cascade lasers for analysis of direct intensity modulation response
Author(s): Webb, J. F.; Haldar, M. K.
Abstract: The direct intensity modulation response of quantum cascade lasers can be accurately calculated from a three-level model. However, the calculations are algebraically complex. An alternative two-level model gives simpler expressions and more readily provides insight into the role of parameters influencing the modulation response. The object of this paper is to improve the two-level model and analyze the direct intensity modulation response. The modified model will simplify theoretical investigation of modulation related phenomena.
Publication type: Journal article
Research centre: Swinburne University of Technology. Sarawak Campus. School of Engineering, Computing and Science
Source: Journal of Applied Physics, Vol. 111, no. 4 (Feb 2012), article no. 043110
Publication year: 2012
FOR Code(s): 01 Mathematical Sciences; 02 Physical Sciences; 09 Engineering
Keyword(s): Direct intensity modulation response; Modulation; Quantum cascade lasers; Two level models
Publisher: American Institute of Physics
ISSN: 0021-8979
Publisher URL: http://dx.doi.org/10.1063/1.3684660
Peer reviewed