Performance Optimization of Carving Signal RZ-DQPSK Modulation Scheme

  • Divya SharmaEmail author
  • Vinit Jaiswal
  • Y. K. Prajapati
  • Rajeev Tripathi
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 524)


This paper depicts a modified return-to-zero differential quadrature phase shift keying (RZ-DQPSK) modulation scheme. A simulative analysis has been performed for an optimization of the proposed scheme. The analysis has also been extended for two different types of commercial fibers; standard single-mode fiber (SSMF) and true wave-reduced slope (TW-RS) fiber to report the similar qualitative performance characteristics. For the sake of better understanding of the proposed modified carving signal RZ-DQPSK scheme, optical spectrum and eye pattern plots are also investigated.


Return-to-zero differential quadrature phase shift keying (RZ-DQPSK) True wave-reduced slope fiber (TW-RS) Bit error rate (BER) Quality factor Eye pattern 



Authors are highly thankful to the institute Motilal Nehru National Institute of Technology, Allahabad, for providing licensed simulation software “RSOFT OPTSIM.”


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Divya Sharma
    • 1
    Email author
  • Vinit Jaiswal
    • 1
  • Y. K. Prajapati
    • 1
  • Rajeev Tripathi
    • 1
  1. 1.Department of Electronics and Communication EngineeringMotilal Nehru National Institute of Technology AllahabadAllahabadIndia

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