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A simple model for optimization design of high performance In1−x−y Ga y Al x As strained MQW DFB lasers

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Abstract

It is well known that complex rate equations and the couple wave equation have to be solved by the method of iteration in the simulation of multi-quantum well (MQW) distributed feedback Bragg (DFB) lasers, and a long CPU time is needed. In this paper, from the oscillation condition of lasers, we propose a simple and fast model for optimization of In1−x−y Ga y Al x As strained MQW DFB lasers. The well number and the cavity length of 1.55 μm wavelength In1−x−y Ga y Al x As MQW DFB lasers are optimized using the model. As a result, the simple model gives almost the same results as the complex one, but 90% CPU time can be saved. In addition, a low threshold, high maximum operating temperature of 550–560 K, and high relaxation oscillation frequency of over 30 GHz MQW DFB laser is presented.

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Authors and Affiliations

  1. Department of Electronics Engineering of Tsinghua University, Beijing, 100084, China

    Y.-J. Zhang, L. Zhu, Z.-G. Gao, M.-H. Chen, Y. Dong & S.-Z. Xie

Authors
  1. Y.-J. Zhang
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  2. L. Zhu
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  3. Z.-G. Gao
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  4. M.-H. Chen
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  5. Y. Dong
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  6. S.-Z. Xie
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Correspondence to Y.-J. Zhang.

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Zhang, YJ., Zhu, L., Gao, ZG. et al. A simple model for optimization design of high performance In1−x−y Ga y Al x As strained MQW DFB lasers. Optical and Quantum Electronics 35, 879–886 (2003). https://doi.org/10.1023/A:1024464526325

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  • DOI: https://doi.org/10.1023/A:1024464526325

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