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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 20316–20321

50-mJ macro-pulses at 1064 nm from a diode-pumped picosecond laser system

A. Agnesi, L. Carrà, P. Dallocchio, F. Pirzio, G. Reali, S. Lodo, and G. Piccinno  »View Author Affiliations

Optics Express, Vol. 19, Issue 21, pp. 20316-20321 (2011)

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Pulse-picking from a 100-mW cw mode-locked seeder, a hybrid master-oscillator power-amplifier (MOPA) system, based on Nd:YVO4 and Nd:YAG amplifier modules, has been developed, delivering single-pulses of 8.6 ps at 455-MHz repetition-rate, bunched into ~1-μs trains of 50 mJ (“macro-pulses”). The output beam is linearly polarized and nearly diffraction limited up to the maximum macro-pulse repetition-rate of 50 Hz. The single-pulse peak power and the macro-pulse duration and energy are quite suitable for high-energy nonlinear optical applications such as low-threshold synchronously-pumped parametric converters in the mid infrared. The impact on the overall efficiency of saturation distortion of the macro-pulse envelope as well as of amplified spontaneous emission (ASE) is considered. The managing of the envelope distortion compensation and of the ASE suppression by means of fast saturable absorbers is reported.

© 2011 OSA

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.4050) Lasers and laser optics : Mode-locked lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 7, 2011
Revised Manuscript: July 4, 2011
Manuscript Accepted: July 4, 2011
Published: October 3, 2011

A. Agnesi, L. Carrà, P. Dallocchio, F. Pirzio, G. Reali, S. Lodo, and G. Piccinno, "50-mJ macro-pulses at 1064 nm from a diode-pumped picosecond laser system," Opt. Express 19, 20316-20321 (2011)

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