A CW, polarization-maintaining λ/4-shifted DFB Er-doped fiber laser at 1.54 μm

Akihito Suzuki, Youhei Takahashi, Masato Yoshida, Masataka Nakazawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We describe a polarization-maintaining (PM) λ/4-shifted DFB Er-doped fiber laser (EDFL), in which optical pulsation effects caused by Er 3+ ion-pairs were successfully removed by co-doping erbium fiber with 12 wt% aluminum. Stable CW operation was realized at a pump power of 100 mW. The laser exhibited single longitudinal-mode oscillation with a single polarization. The output power, linewidth of the longitudinal mode, and RIN at the relax.ation oscillation frequency were 0.5mW, 82 kHz, and -79 dB/Hz at a pump power of 100 rnW, respectively. Stable operation was also obtained at a pump power of 140 mW, where the above values were improved to 0.8mW, 43kHz, and -92 dB/Hz, respectively.

Original languageEnglish
Pages (from-to)251-257
Number of pages7
JournalIEICE Electronics Express
Volume4
Issue number8
DOIs
Publication statusPublished - 2007 Apr 25

Keywords

  • Distributed feedback lasers
  • Erbium-doped fiber
  • Optical fiber lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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