Combination and Compression of Multiple Pulses with Same or Different Wavelengths

Jiayao Huang, Qian Li*, Ziyun Jian, Alex Wai, Kaliyaperumal Nakkeeran

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

4 Citations (Scopus)


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
Pages (from-to)6932-6938
Number of pages7
JournalJournal of Lightwave Technology
Issue number24
Early online date8 Sept 2020
Publication statusPublished - Dec 2020

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics

User-Defined Keywords

  • Computational modeling
  • fibers
  • pulse compression
  • nonlinear optics


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