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Proceedings Paper

High power MWIR quantum cascade lasers and their use in intra-cavity THz room temperature generation
Author(s): Mariano Troccoli; Xiaojun Wang; Jenyu Fan; Seungyong Jung; Aiting Jiang; Yifan Jiang; Karun Vijayraghavan; Mikhail A. Belkin
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Paper Abstract

In this paper we review our results on high power quantum cascade lasers in the mid- and long-wave infrared regions of the spectrum (4-12um). The specifications and characteristics of state-of-the-art QC lasers fabricated by MOCVD technology are illustrated, along with their key application requirements and potential issues for future improvements. Single emitter QC lasers in the Watt-class range are presented and analyzed. In addition, we explore the use of high power QCLs for THz generation at room temperature by non-linear mixing of high power mid-infrared beams in a monolithic intra-cavity design. The THz radiation so obtained is widely tunable by electrical injection. Experimentally, we demonstrate ridge waveguide single mode devices electrically tunable between 3.44 and 4.02 THz.

Paper Details

Date Published: 22 May 2015
PDF: 14 pages
Proc. SPIE 9467, Micro- and Nanotechnology Sensors, Systems, and Applications VII, 94672G (22 May 2015); doi: 10.1117/12.2178098
Show Author Affiliations
Mariano Troccoli, AdTech Optics, Inc. (United States)
Xiaojun Wang, AdTech Optics, Inc. (United States)
Jenyu Fan, AdTech Optics, Inc. (United States)
Seungyong Jung, The Univ. of Texas at Austin (United States)
Aiting Jiang, The Univ. of Texas at Austin (United States)
Yifan Jiang, The Univ. of Texas at Austin (United States)
Karun Vijayraghavan, The Univ. of Texas at Austin (United States)
Mikhail A. Belkin, The Univ. of Texas at Austin (United States)


Published in SPIE Proceedings Vol. 9467:
Micro- and Nanotechnology Sensors, Systems, and Applications VII
Thomas George; Achyut K. Dutta; M. Saif Islam, Editor(s)

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