Combination and compression of multiple pulses with same or different wavelengths

Jiayao Huang, Qian Li, Ziyun Jian, Wai Ping-kong, Kaliyaperumal Nakkeeran

Research output: Contribution to journalArticle

Abstract

We propose a practical scheme to demonstrate the combination and subsequent self-similar compression of two pulses with the same or different central wavelengths while propagating through a nonlinear fiber with exponentially decreasing dispersion. To initiate these processes, two raised cosine pulses with the same or different wavelengths is modulated using a phase modulator to acquire the same chirp at the input of the fiber. While propagating through the nonlinear fiber, these chirped pulses first coalesce into a single pulse and during further propagation get compressed into a single ultrashort high-power
pulse. The output pulse possesses a large compression factor, high
proportion of energy and peak power compared to a single input pulse. We also report the combination and compression of five raised cosine pulses with different wavelengths to achieve an appreciable compression effect, indicating that this system works well even with a small number of input pulses. The proposed scheme provides a simple way to generate high power ultrashort
pulse with high energy and good quality in a short length of fiber.
Original languageEnglish
JournalIEEE Journal of Lightwave Technology
Early online date8 Sep 2020
DOIs
Publication statusE-pub ahead of print - 8 Sep 2020

Keywords

  • Computational modeling
  • fibers
  • pulse compression
  • nonlinear optics

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