Forced phase modulation and self phase modulation effects in dispersion-tuned mode-locked fiber lasers

Kohichi Tamura, Eiji Yoshida, Masataka Nakazawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effects of forced phase modulation (FPM) and self phase modulation (SPM) in dispersion tuned fiber lasers (DTFL) are examined. We show that FPM, such as chirp in the modulator, plays an important role in the pulse shaping because of the important role of dispersion in the cavity. In particular, compared to the case of zero FPM, significant pulse shortening can be obtained by using up-chirp modulation. The results suggest that modulators with large chirp parameters are desirable for DTFLs. When SPM is introduced, the pulse shapes differ greatly depending on the direction of the FPM. Significant deviations from Gaussian profiles are observed.

Original languageEnglish
Pages (from-to)195-200
Number of pages6
JournalIEICE Transactions on Electronics
VolumeE81-C
Issue number2
Publication statusPublished - 1998 Jan 1
Externally publishedYes

Keywords

  • Fiber
  • Laser
  • Mode-locking
  • Phase modulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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