Tunable single-longitudinal-mode fiber laser based on a chirped fiber Bragg grating

Lin Wang, Zhenkun Shen, Xinhuan Feng, Feng Li, Yuan Cao, Xudong Wang, Bai ou Guan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

In this paper, a tunable single-longitudinal-mode (SLM) fiber laser based on a chirped fiber Bragg grating (CFBG) is proposed and experimentally demonstrated. Multi-sub-cavities formed by a single CFBG inserted inside the laser loop greatly increase the longitudinal mode spacing so that SLM operation can be obtained. The SLM laser output can be tuned in a wide wavelength range from 1535 to 1565 nm by simply adjusting the central wavelength of a tunable optical band-pass filter (TOBF). A side-mode suppression ratio of larger than 50 dB and a linewidth of less than 8.5 kHz have been respectively achieved.

Original languageEnglish
Article number105775
JournalOptics and Laser Technology
Volume121
DOIs
Publication statusPublished - Jan 2020

Keywords

  • Chirped fiber Bragg grating (CFBG)
  • Fiber laser
  • Single-longitudinal-mode (SLM)

ASJC Scopus subject areas

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

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