Saturable absorber-based single-longitudinal mode tunable fiber laser using a Faraday rotator mirror as the rear cavity end

Hsiang Wang, Hung Wen Chiu, Shien Kuei Liaw, Chin Cheng Fan

Research output: Contribution to journalArticle

Abstract

A single-longitudinal mode selection is realized in a linear-cavity tunable fiber laser constructed using a Faraday rotator mirror and a partial reflectance fiber Bragg grating as the cavity ends. At both tuning wavelengths of 1543.47 and 1557.52 nm, the measured optical signal-to-noise ratio is larger than 40 dB and a linewidth less than 1 MHz is obtained. It is based on the usage of a piece of gain fiber type saturable absorber as the mode filter. The pumping power efficiency is improved by 10% by recycling the residual pump power to the gain medium.

Original languageEnglish
Article number140924
JournalOptical Engineering
Volume53
Issue number11
DOIs
Publication statusPublished - Nov 1 2014

Fingerprint

Pumping (laser)
Saturable absorbers
Fiber Bragg gratings
Fiber lasers
Laser modes
tunable lasers
Linewidth
fiber lasers
Recycling
absorbers
Signal to noise ratio
Mirrors
Tuning
Pumps
mirrors
Wavelength
cavities
fibers
Fibers
power efficiency

Keywords

  • fiber Bragg grating
  • fiber laser
  • saturable absorber
  • single-longitudinal mode

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

Cite this

Saturable absorber-based single-longitudinal mode tunable fiber laser using a Faraday rotator mirror as the rear cavity end. / Wang, Hsiang; Chiu, Hung Wen; Liaw, Shien Kuei; Fan, Chin Cheng.

In: Optical Engineering, Vol. 53, No. 11, 140924, 01.11.2014.

Research output: Contribution to journalArticle

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