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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 24354–24360

High-power widely tunable sub-20fs Gaussian laser pulses for ultrafast nonlinear spectroscopy

Bernd Metzger, Andy Steinmann, and Harald Giessen  »View Author Affiliations

Optics Express, Vol. 19, Issue 24, pp. 24354-24360 (2011)

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We demonstrate the generation of widely tunable sub-20fs Gaussian-shaped laser pulses using a grating-based 4-f pulse shaper and a liquid crystal spatial light modulator. Our pump source is an Yb:KGW solitary mode-locked oscillator at 44MHz repetition rate which is coupled into a large mode area microstructured fiber to generate a broad spectrum from below 900nm to above 1150nm. These pulses are precompressed by a prism sequence and subsequently sent into the pulse shaper. We use the multiphoton intrapulse interference phase scan (MIIPS) for phase shaping and iterative amplitude optimization to achieve Gaussian-like tunable sub-20fs pulses with output powers of up to 142mW as well as nontunable pulses with 310mW output power as short as 11.5fs.

© 2011 OSA

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5540) Ultrafast optics : Pulse shaping
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:
Ultrafast Optics

Original Manuscript: September 22, 2011
Revised Manuscript: October 28, 2011
Manuscript Accepted: November 3, 2011
Published: November 14, 2011

Virtual Issues
Vol. 7, Iss. 1 Virtual Journal for Biomedical Optics

Bernd Metzger, Andy Steinmann, and Harald Giessen, "High-power widely tunable sub-20fs Gaussian laser pulses for ultrafast nonlinear spectroscopy," Opt. Express 19, 24354-24360 (2011)

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