Combination and Compression of Multiple Optical Pulses in Nonlinear Fibers with the Exponentially Decreasing Dispersion

Qian Li, Ziyun Jian, Wei Lu, Kaliyaperumal Nakkeeran , K. Senthilnathan, P. K. A. Wai

Research output: Contribution to journalArticle

1 Citation (Scopus)
7 Downloads (Pure)

Abstract

We propose a simple scheme to generate high energy ultrashort pulses by combination and compression of multiple input pulses which share the same chirp profile. First, the multiple raised-cosine pulses in the input pulse train are
modulated by a phase modulator in which each modulation cycle covers two, three, four, or five pulses. Then, the modulated pulses are launched into a nonlinear fiber with the exponentially decreasing dispersion. We find that these pulses initially coalesce into a single pulse whose pulse profile is nearly hyperbolic secant, which then undergoes self-similar compression. Thus in the
proposed method, first the combination of the multiple optical pulses occurs and then self-similar compression takes over. Besides, we also report the generation of ultrashort pulses by combination and compression of multiple hyperbolic secant pulses with the same chirp. The numerical results reveal that the resulting ultrashort pulse possesses a large portion of the input pulses for both raised-cosine and hyperbolic secant pulses. However, the compression factor and energy ratio are relatively higher for the hyperbolic secant pulses when compared to the raised-cosine pulses.
Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalIEEE Journal of Quantum Electronics
Volume54
Issue number2
Early online date2 Feb 2018
DOIs
Publication statusPublished - Apr 2018

Keywords

  • Computational modeling
  • fibers
  • pulse compression
  • nonlinear optics

Fingerprint Dive into the research topics of 'Combination and Compression of Multiple Optical Pulses in Nonlinear Fibers with the Exponentially Decreasing Dispersion'. Together they form a unique fingerprint.

Cite this