Distributed feedback fiber laser based on a fiber Bragg grating inscribed using the femtosecond point-by-point technique

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Abstract

A distributed feedback (DFB) fiber laser based on a 32-mm long pi-phase-shifted fiber Bragg grating inscribed using the femtosecond point-by-point technique in a single-mode erbium-doped optical fiber (CorActive EDF-L 1500) is demonstrated. The lasing power of the DFB laser reaches 0.7 mW at a wavelength of 1550 nm when pumped with a laser diode at a wavelength of 976 nm and power of 525 mW. The width of the lasing spectrum is 17 kHz. It is shown that the pi-phase-shifted fiber Bragg grating fs-inscribed in a non-PM fiber provides the selection of the single polarization mode of the DFB laser. DFB laser formation in a highly doped non-photosensitive optical fiber (CoreActive SCF-ER60-8/125-12) is also demonstrated.

Original languageEnglish
Article number035103
Number of pages5
JournalLaser Physics Letters
Volume15
Issue number3
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • birefringence
  • distributed feedback
  • fiber Bragg grating
  • fiber laser
  • NOISE
  • INSCRIPTION

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