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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 20 — Sep. 24, 2012
  • pp: 22442–22447

High average power picosecond pulse generation from a thulium-doped all-fiber MOPA system

Jiang Liu, Qian Wang, and Pu Wang  »View Author Affiliations

Optics Express, Vol. 20, Issue 20, pp. 22442-22447 (2012)

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We report a stable highly-integrated high power picosecond thulium-doped all-fiber MOPA system without using conventional chirped pulse amplification technique. The master oscillator was passively mode-locked by a SESAM to generate average power of 15 mW at a fundamental repetition rate of 103 MHz in a short linear cavity, and a uniform narrow bandwidth FBG is employed to stabilize the passively mode-locked laser operation. Two-stage double-clad thulium-doped all-fiber amplifiers were used directly to boost average power to 20.7 W. The laser center wavelength was 1962.8 nm and the pulse width was 18 ps. The single pulse energy and peak-power after the amplication were 200 nJ and 11.2 kW respectively. To the best of our knowledge, this is the highest average power ever reported for a picosecond thulium-doped all-fiber MOPA system.

© 2012 OSA

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.7090) Lasers and laser optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 10, 2012
Revised Manuscript: September 10, 2012
Manuscript Accepted: September 11, 2012
Published: September 17, 2012

Jiang Liu, Qian Wang, and Pu Wang, "High average power picosecond pulse generation from a thulium-doped all-fiber MOPA system," Opt. Express 20, 22442-22447 (2012)

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