• Generation of picosecond optical pulses from single heterostructure GaAs diode laser and their emission characteristics

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      https://www.ias.ac.in/article/fulltext/pram/045/05/0439-0451

    • Keywords

       

      Optical pulses; emission characteristics; oscillation frequency

    • Abstract

       

      Emission characteristics of a single heterostructure GaAs diode laser are reported using a simple driver circuit. It provides a single picosecond time duration optical pulse, a pulse train or a broad optical pulse depending on the amplitude and time duration of the electrical pump pulse. Results show that relaxation oscillation frequency depends on the amplitude of pumping current pulse as well as on some inherent property of diode laser, which seems to be the level of impurity in lasing medium. Variation of relaxation oscillation frequency with amplitude of current pulse shows only the qualitative agreement with the reported theoretical predictions.

    • Author Affiliations

       

      V N Rai1 M Shukla1 H C Pant1

      1. Laser Plasma Group, Centre for Advanced Technology, Indore - 452 013, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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