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Photoresponse characteristics from computationally efficient dynamic model of uni-traveling carrier photodiode

  • Senjuti Khanra
  • Abhirup Das Barman
Article
  • 151 Downloads
Part of the following topical collections:
  1. 2015 Conference on “Numerical Simulation of Optoelectronic Devices”

Abstract

A time domain model of bulk InGaAs/InP uni-traveling carrier photodiode is developed in terms of coupled differential equations of incident photon flux and photo generated carrier density rates. For fast computation of model parameters linear approximation of material absorption coefficient is made with carrier density. Wavelength and bias voltage dependent responsivity is well demonstrated by the model and their values at different absorption layer widths agree well with the experimental results. Optical power induced output photocurrent saturation is also explained. Furthermore, from the temporal variation of output photocurrent, estimation of device bandwidth is shown.

Keywords

Carrier density Responsivity Photodiodes 

Notes

Acknowledgments

The work is undertaken as part of Information Technology Research Academy (ITRA), Media Lab Asia project entitled “Mobile Broadband Service Support over Cognitive Radio Networks”. Author would like to thank the anonymous reviewer for his suggestions to improve the manuscript.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Institute of Radio Physics and ElectronicsUniversity of CalcuttaKolkataIndia
  2. 2.ITRA Project “Mobile Broadband Service Support Over Cognitive Radio Networks”, IRPE-CUKolkataIndia

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