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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 7 — Apr. 8, 2013
  • pp: 9123–9131

Narrow linewidth picosecond UV pulsed laser with mega-watt peak power

Chunning Huang, Craig Deibele, and Yun Liu  »View Author Affiliations

Optics Express, Vol. 21, Issue 7, pp. 9123-9131 (2013)

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We demonstrate a master oscillator power amplifier (MOPA) burst mode laser system that generates 66 ps/402.5 MHz pulses with mega-watt peak power at 355 nm. The seed laser consists of a single frequency fiber laser (linewidth < 5 KHz), a high bandwidth electro-optic modulator (EOM), a picosecond pulse generator, and a fiber based preamplifier. A very high extinction ratio (45 dB) has been achieved by using an adaptive bias control of the EOM. The multi-stage Nd:YAG amplifier system allows a uniformly temporal shaping of the macropulse with a tunable pulse duration. The light output from the amplifier is converted to 355 nm, and over 1 MW peak power is obtained when the laser is operating in a 5-μs/10-Hz macropulse mode. The laser output has a transform-limited spectrum with a very narrow linewidth of individual longitudinal modes. The immediate application of the laser system is the laser-assisted hydrogen ion beam stripping for the Spallation Neutron Source (SNS).

© 2013 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(140.3538) Lasers and laser optics : Lasers, pulsed

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 8, 2013
Revised Manuscript: March 25, 2013
Manuscript Accepted: March 28, 2013
Published: April 4, 2013

Chunning Huang, Craig Deibele, and Yun Liu, "Narrow linewidth picosecond UV pulsed laser with mega-watt peak power," Opt. Express 21, 9123-9131 (2013)

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