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Simulation of gain-switched picosecond pulse generation from quantum well lasers

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Abstract

Circuit models for gain-switched quantum well laser diodes are developed and simulated using the circuit analysis program SPICE2. Effects of cavity length and number of wells on the output pulse shape are analysed. Picosecond pulses of 7 and 2 ps full-width at half-maximum (FWHM) are observed, corresponding to second and third quantized level transitions, respectively. A remarkable reduction in the output pulse width observed for the third quantized level transition, demonstrates the significance of higher sub-band transitions for ultrashort pulse generation.

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Author notes

  1. K. K. Kamath

    Present address: Department of EECS, University of Michigan, USA

  2. P. R. Vaya

    Present address: Optoelectronics Laboratory, N.U.S., Singapore

Authors and Affiliations

  1. School of Electronics and Communication Engineering, Anna University, Guindy, Madras-25, India

    H. A. Tafti

  2. Department of Electrical Engineering, Indian Institute of Technology, Madras-36, India

    V. S. Sheeba, K. K. Kamath, F. N. Farokhrooz & P. R. Vaya

Authors
  1. H. A. Tafti
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  2. V. S. Sheeba
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  3. K. K. Kamath
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  4. F. N. Farokhrooz
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  5. P. R. Vaya
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Tafti, H.A., Sheeba, V.S., Kamath, K.K. et al. Simulation of gain-switched picosecond pulse generation from quantum well lasers. Opt Quant Electron 28, 1669–1676 (1996). https://doi.org/10.1007/BF00331056

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  • DOI: https://doi.org/10.1007/BF00331056

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