1. Home
    2. Journals
    3. Pramana – Journal of Physics
    4. Volume 92
    5. Issue 4

    • Long-time dynamics of a vertical-cavity surface-emitting laser under optical feedback

      S DAMODARAKURUP R SOORAT A VUDAYAGIRI

      Research Article Volume 92 Issue 4 April 2019 Article ID 0059

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/092/04/0059

    • Keywords

       

      Vertical-cavity surface-emitting laser; optical feedback; chaos

    • Abstract

       

      External optical feedback in vertical-cavity surface-emitting laser (VCSEL) is found to influence its output intensity.We studied the effect of the amount of total output polarisation feedback and polarisation-selective feedback on the output intensities of a VCSEL for a low-resolution sampling and for long temporal duration. A 40 μs resolution time-series correlation analysis is performed for different feedback conditions and the characteristicdynamics is investigated.We found a correlated fluctuation in VCSEL output for a moderate amount of total feedbackand polarised feedback. The period of such fluctuations is found to be reduced from total feedback to the polarised feedback of the system.

    • Author Affiliations

       

      S DAMODARAKURUP1 R SOORAT2 3 A VUDAYAGIRI3

      1. Department of Physics,Government College Kanjiramkulam,Kanjiramkulam,Thiruvananthapuram 695 524, India
      2. R C Bose Centre for Cryptology and Security, Indian Statistical Institute Kolkata, 203 Barrackpore Trunk Road, Kolkata 700 108, India
      3. School of Physics, University of Hyderabad, Gachibowli, Hyderabad 500 046, India

    • Dates

       
      Published
      1 April 2019
      Manuscript received
      3 June 2018
      Manuscript revised
      24 August 2018
      Accepted
      30 August 2018
      Early published
      Unedited version published online
      Final version published online
      15 February 2019

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.

Contact | Site index