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A novel resonant cavity enhanced photodetector with flat-top and steep-edge response

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Abstract

A novel resonant cavity enhanced (RCE) photodetector with flat-top and steep-edge response is presented. The response is obtained by designing a gradient-thickness P area in the absorption cavity. Simulation results show that the maximum and minimum values of the quantum efficiency in bandpass are 85.242% and 87.564% respectively, the ripple is about 3.6%, and 0.5 dB, 3 dB and 20 dB bandwidths are 0.3 nm, 0.4 nm and 1.2 nm, respectively. The mesa area is 10 μm × 10 μm and the frequency response bandwidth is 87 GHz. Compared with similar photodetectors, this photodetector has high quantum efficiency, narrow spectral response linewidth, good flat-top and steep-edge response and ideal high-speed characteristics.

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Authors and Affiliations

  1. Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Jing Di  (邸菁), Yong-qing Huang  (黄永清), Xiao-feng Duan  (段晓峰), Hai-lan Song  (宋海兰), Xiaomin Ren  (任晓敏), Hui Huang  (黄辉) & Qi Wang  (王琦)

Authors
  1. Jing Di  (邸菁)
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  2. Yong-qing Huang  (黄永清)
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  3. Xiao-feng Duan  (段晓峰)
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  4. Hai-lan Song  (宋海兰)
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  5. Xiaomin Ren  (任晓敏)
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  6. Hui Huang  (黄辉)
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  7. Qi Wang  (王琦)
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Corresponding author

Correspondence to Jing Di  (邸菁).

Additional information

This work has been supported by the National High Technology Research and Development Program of China (No. 2007AA03Z418), the Program of Key International Science and Technology Cooperation Projects (No. 2006DFB11110), the National “111” Project (No. B07005), and the Program for Changjiang Scholars and Innovative Research Team in University, Ministry of Education (No. IRT0609).

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Di, J., Huang, Yq., Duan, Xf. et al. A novel resonant cavity enhanced photodetector with flat-top and steep-edge response. Optoelectron. Lett. 6, 265–268 (2010). https://doi.org/10.1007/s11801-010-9225-1

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  • DOI: https://doi.org/10.1007/s11801-010-9225-1

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