A polarization-maintaining pedestal-free femtosecond pulse compressor incorporating an ultrafast dispersion-imbalanced nonlinear optical loop mirror

K. R. Tamura, M. Nakazawa

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

We report a polarization-maintaining and dispersion-flattened pulse compressor based on a dispersion decreasing fiber (DDF) for compression and a dispersion-imbalanced nonlinear optical loop mirror (DI-NOLM) for pedestal removal. A dispersion management scheme was used in the DI-NOLM to reduce dispersive spreading, which allows efficient switching for ultrashort pulses. Input pulses of 3 ps duration at 10 GHz were compressed to as short as 140 fs with a spectral width of 56 nm, time-bandwidth product of 0.96, and average power of 8.5 mW. This pulsewidth was limited by the higher order dispersion in the DI-NOLM. Using a post filter and a post amplifier, we obtained transform-limited 170 fs pulses at an average power of 100 mW with peak-to-pedestal ratios exceeding 35 dB. The compressor was adjustment-free, which is critical for practical use.

Original languageEnglish
Pages (from-to)526-528
Number of pages3
JournalIEEE Photonics Technology Letters
Volume13
Issue number5
DOIs
Publication statusPublished - 2001 May 1
Externally publishedYes

Keywords

  • Optical pulse compression
  • Optical pulse generation
  • Optical pulse shaping
  • Optical soliton

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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