Chin. J. Semicond. > 2007, Volume 28?>?Issue 1?> 31-35

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Waveguide Optimization for a 9.0μm GaAs-Based Quantum Cascade Laser

Li Lu, Liu Fengqi, Shao Ye, Liu Junqi and Wang Zhanguo

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Abstract: Improved waveguide designs for 9.0μm GaAs-based quantum cascade laser (QCL) structures are presented.Modal losses and confinement factors are calculated for TM modes with the transfer matrix method (TMM) and effective index method (EIM).The thicknesses of the cladding layer and waveguide layer,the ridge-width,and the cavity length are all taken into account.Appropriate thicknesses of epilayers are given with lower threshold gain and more economical material growth time.

Key words: quantum cascade laser, transfer matrix method, effective index method

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    Received: 18 August 2015 Revised: 22 August 2006 Online: Published: 01 January 2007

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      Li Lu, Liu Fengqi, Shao Ye, Liu Junqi, Wang Zhanguo. Waveguide Optimization for a 9.0μm GaAs-Based Quantum Cascade Laser[J]. Journal of Semiconductors, 2007, 28(1): 31-35. ****Li L, Liu F Q, Shao Y, Liu J Q, Wang Z G. Waveguide Optimization for a 9.0μm GaAs-Based Quantum Cascade Laser[J]. Chin. J. Semicond., 2007, 28(1): 31.
      Citation:
      Li Lu, Liu Fengqi, Shao Ye, Liu Junqi, Wang Zhanguo. Waveguide Optimization for a 9.0μm GaAs-Based Quantum Cascade Laser[J]. Journal of Semiconductors, 2007, 28(1): 31-35. ****
      Li L, Liu F Q, Shao Y, Liu J Q, Wang Z G. Waveguide Optimization for a 9.0μm GaAs-Based Quantum Cascade Laser[J]. Chin. J. Semicond., 2007, 28(1): 31.

      Waveguide Optimization for a 9.0μm GaAs-Based Quantum Cascade Laser

      • Key Laboratory of Semiconductor Material Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China

      • Key Laboratory of Semiconductor Material Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China

      • Key Laboratory of Semiconductor Material Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China

      • Key Laboratory of Semiconductor Material Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China

      • Key Laboratory of Semiconductor Material Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China

      • Received Date: 2015-08-18
      • Accepted Date: 2006-05-24
      • Revised Date: 2006-08-22
      • Published Date: 2006-12-26

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