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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 13 — Jun. 27, 2005
  • pp: 5046–5051

Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating

P. Pérez-Millán, A. Díez, M. V. Andrés, D. Zalvidea, and R. Duchowicz  »View Author Affiliations

Optics Express, Vol. 13, Issue 13, pp. 5046-5051 (2005)

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We report an actively Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating. The laser employs a pair of Bragg gratings as reflective mirrors, one of which is bonded to a magnetostrictive element. Lengthening of the magnetostrictive element when a magnetic field is applied shifts the Bragg wavelength of the grating, allowing control of the Q-factor of the cavity and, thus, performing active Q-switching. The magnetostrictive modulator is small, compact and requires less than 300 mW electrical drive power. Using erbium-doped fiber and a maximum pump power of 120 mW, Q-switch pulses of more than 1 W peak power were obtained, with a pulse repetition rate that can be continuously varied from 1 Hz to 125 kHz.

© 2005 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Research Papers

Original Manuscript: May 17, 2005
Revised Manuscript: June 16, 2005
Published: June 27, 2005

P. Pérez-Millán, A. Díez, M. Andrés, D. Zalvidea, and R. Duchowicz, "Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating," Opt. Express 13, 5046-5051 (2005)

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