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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 2 — Jan. 15, 2013
  • pp: 121–123

1 μJ, sub-500 fs chirped pulse amplification in a Tm-doped fiber system

R. Andrew Sims, Pankaj Kadwani, Alex Sincore Lawrence Shah, and Martin Richardson  »View Author Affiliations

Optics Letters, Vol. 38, Issue 2, pp. 121-123 (2013)

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We demonstrate a Tm-doped fiber laser system producing 300fs pulses with 1 μJ energy, corresponding to peak powers greater than 3 MW. Pulses of 150 fs with 30 nm spectral bandwidth and 3 nJ pulse energy are generated in a Raman-soliton self-frequency shift amplifier, then stretched to 160ps using a chirped Bragg grating. The 60 MHz oscillator repetition rate is reduced to 100 kHz using an electro-optic modulator. After a single-mode fiber preamplifier and a large-mode-area fiber power amplifier, pulses were compressed using a folded Treacy grating setup to below 500 fs with up to 1 μJ pulse energy. To the best of our knowledge, this is the highest energy yet demonstrated as well as the first demonstration of peak powers exceeding 1 MW from a Tm:fiber laser system.

© 2013 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3538) Lasers and laser optics : Lasers, pulsed

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 29, 2012
Revised Manuscript: December 5, 2012
Manuscript Accepted: December 10, 2012
Published: January 8, 2013

R. Andrew Sims, Pankaj Kadwani, Alex Sincore Lawrence Shah, and Martin Richardson, "1 μJ, sub-500 fs chirped pulse amplification in a Tm-doped fiber system," Opt. Lett. 38, 121-123 (2013)

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