• Frontiers of Optoelectronics
  • Vol. 6, Issue 2, 194 (2013)
Mohammad H. AKBARI and Mohsen JALALI*
Author Affiliations
  • School of Engineering, Shahed University, Tehran 3319118651, Iran
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    This paper presents a circuit model for thin avalanche photodiodes (APDs). In this model, the nonuniformity of the electric filed in the multiplication region is modeled using a stepwise method. The model also tries to take the effects of carrier’s position dependent properties, like carrier’s dead length and the history of carrier’s previous ionization into account by developing an effective electric field in the multiplication region. The output photocurrent and multiplication gain obtained from the proposed model for different lengths of the multiplication region achieve a good agreement in comparison with available experimental data. In addition, calculated excess noise factor reveals the model ability for noise and sensitivity analysis.
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    Mohammad H. AKBARI, Mohsen JALALI. Position dependent circuit model for thin avalanche photodiodes[J]. Frontiers of Optoelectronics, 2013, 6(2): 194
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    Received: Jan. 14, 2013
    Accepted: Mar. 5, 2013
    Posted: Feb. 1, 2013
    Published Online: Mar. 3, 2014
    The Author Email: JALALI Mohsen (mjalali@shahed.ac.ir)