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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 24008–24012

100 W all fiber picosecond MOPA laser

Sheng-Ping Chen, Hong-Wei Chen, Jing Hou, and Ze-Jin Liu  »View Author Affiliations


Optics Express, Vol. 17, Issue 26, pp. 24008-24012 (2009)
http://dx.doi.org/10.1364/OE.17.024008


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Abstract

A high power picosecond laser is constructed in an all fiber master oscillator power amplifier (MOPA) configuration. The seed source is an ytterbium-doped single mode fiber laser passively mode-locked by a semiconductor saturable absorber mirror (SESAM). It produces 20 mW average power with 13 ps pulse width and 59.8 MHz repetition rate. A direct amplification of this seed source encounters obvious nonlinear effects hence serious spectral broadening at only ten watt power level. To avoid these nonlinear effects, we octupled the repetition rate to about 478 MHz though a self-made all fiber device before amplification. The ultimate output laser exhibits an average power of 96 W, a pulse width of 16 ps, a beam quality M2 of less than 1.5, and an optical conversion efficiency of 61.5%.

© 2009 OSA

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 2, 2009
Revised Manuscript: December 8, 2009
Manuscript Accepted: December 10, 2009
Published: December 16, 2009

Citation
Sheng-Ping Chen, Hong-Wei Chen, Jing Hou, and Ze-Jin Liu, "100 W all fiber picosecond MOPA laser," Opt. Express 17, 24008-24012 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-26-24008


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References

  1. I. P. G. Photonics, IPG Photonics successfully tests world’s first 10 kilowatt single-mode production laser. http://www.ipgphotonics.com/newsproduct.htm (June 15, 2009).
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