Volume 5 Issue 1
Feb.  2012
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WANG Qi, LIU Yun, WANG Li-jun. Design of InP-based quantum cascade laser with high power and short wavelength[J]. Chinese Optics, 2012, 5(1): 83-91. doi: 10.3788/CO.20120501.0083
Citation: WANG Qi, LIU Yun, WANG Li-jun. Design of InP-based quantum cascade laser with high power and short wavelength[J]. Chinese Optics, 2012, 5(1): 83-91. doi: 10.3788/CO.20120501.0083

Design of InP-based quantum cascade laser with high power and short wavelength

doi: 10.3788/CO.20120501.0083
  • Received Date: 11 Oct 2011
  • Rev Recd Date: 13 Dec 2011
  • Publish Date: 10 Feb 2012
  • The design principles and design methods are introduced for a InP-based Quantum Cascade Laser(QCL) with high power and short wavelength. According to the described ideal and real carrier transition paths, the active region designing trends and approaches to enhance the efficiency of the QCL are also proposed. The most advanced design methods, such as two phonon resonance design, nonresonant extraction design, strong coupling design, deep well design, shallow well design and short injector design are reviewed, respectively. The characteristics and advantages of each design method are discussed. With these highly advanced design approaches, the Wall-plug Efficiency(WPE) of the short wavelength QCL exceeds 50% at low temperature and room temperature, continuous wave operation surpasses 3 W and the maximum T0 and T1 reach 383 K and 645 K, respectively. As the most advanced working region, high power, advanced design methods make QCL unlimited usage in both military and civilian fields. Moreover, they could also be served as the highly efficient bandstructure pioneer design methods for other working regions.

     

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