Stability wavelength-spacing-tunable single-longitudinal-mode dual-wavelength erbium-doped fiber laser based on nonlinear amplifying loop mirror

Shuo Liu, Fengping Yan, Siyu Tan, Yan Bai, Chang Fei, Hong Zhou, Yafei Hou, Ning Zhang

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A simple linear cavity configuration for a stability wavelength-spacing-tunable single-longitudinal-mode (SLM) dual-wavelength erbium-doped fiber laser based on a nonlinear amplifying loop mirror (NALM) is proposed. The gain competition in the erbium-doped fiber (EDF) has been suppressed by the intensity dependent loss introduced by the NALM. The SLM operation is guaranteed by a section of unpumped EDF as saturable absorber. A stable dual-wavelength SLM fiber laser with a wavelength-spacing of 11.35 nm is experimentally realized. The optical signal-to-noise ratio is over 47 dB and the linewidths of two wavelengths measured by delayed self-heterodyne method are 1.1 and 1.0125 kHz, respectively. The tuning range of wavelength-spacing is 9.09–11.35 nm, correspondingly, and the THz signal is from 1.235 to 1.416 THz.

Original languageEnglish
Article number15
JournalOptical and Quantum Electronics
Volume49
Issue number1
DOIs
Publication statusPublished - Jan 1 2017
Externally publishedYes

Keywords

  • Dual-wavelength
  • Fiber laser
  • Single-longitudinal-mode
  • Wavelength-spacing-tunable

ASJC Scopus subject areas

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

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