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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 29 — Oct. 10, 2012
  • pp: 6933–6936

6 mJ, high-average-power, all-fiberized Q-switched fiber master oscillator power amplifier with low repetition rate

Hanwei Zhang, Xiaolin Wang, Pu Zhou, Zhiqun Gong, and Xiaojun Xu  »View Author Affiliations

Applied Optics, Vol. 51, Issue 29, pp. 6933-6936 (2012)

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We report an all-fiberized, high-pulse-energy, high-average-power, Q -switched fiber master oscillator power amplifier (MOPA) oscillated at 1064 nm. The seed source is an acousto-optic Q -switched fiber laser, which is driven by an arbitrary waveform generator. A preamplifier is developed to boost the average power to about 3 W. Finally, we achieved an average output power of more than 62 W and a pulse energy of 6.2 mJ at 10 kHz repetition rate. The pulse duration is about 157 ns corresponding to the peak power of 37.1 kW. The optical-to-optical efficiency of the main amplifier is 61.3%. The beam quality factors (M2) are 3.1 in both directions.

© 2012 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3538) Lasers and laser optics : Lasers, pulsed
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 15, 2012
Revised Manuscript: August 31, 2012
Manuscript Accepted: September 2, 2012
Published: October 3, 2012

Hanwei Zhang, Xiaolin Wang, Pu Zhou, Zhiqun Gong, and Xiaojun Xu, "6 mJ, high-average-power, all-fiberized Q-switched fiber master oscillator power amplifier with low repetition rate," Appl. Opt. 51, 6933-6936 (2012)

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