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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 3 — Feb. 2, 2009
  • pp: 1919–1924

Octave-spanning supercontinuum generated in SF6-glass PCF by a 1060 nm mode-locked fibre laser delivering 20 pJ per pulse

H. Hundertmark, S. Rammler, T. Wilken, R. Holzwarth, T. W. Hänsch, and P. St.J. Russell  »View Author Affiliations


Optics Express, Vol. 17, Issue 3, pp. 1919-1924 (2009)
http://dx.doi.org/10.1364/OE.17.001919


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Abstract

We report the generation of an octave-spanning supercontinuum in SF6-glass photonic crystal fiber using a diode-pumped passively mode-locked fs Yb-fiber laser oscillating at 1060 nm. The pulses (energy up to 500 pJ and duration 60 fs) were launched into a 4 cm length of PCF (core diameter 1.7 μm and zero-dispersion wavelength ~1060 nm). Less than 20 pJ of launched pulse energy was sufficient to generate a supercontinuum from 600 nm to 1450 nm, which represents the lowest energy so far reported for generation of an octave-spanning supercontinuum from a 1 μm pump. Since the laser pulse energy scales inversely with the repetition rate, highly compact and efficient sources based on SF6-glass PCF are likely to be especially useful for efficient spectral broadening at high repetition rates (several GHz), such as those needed for the precise calibration of astronomical spectrographs, where a frequency comb spacing >10 GHz is required for the best performance.

© 2009 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(190.4370) Nonlinear optics : Nonlinear optics, fibers

History
Original Manuscript: November 4, 2008
Revised Manuscript: January 16, 2009
Manuscript Accepted: January 16, 2009
Published: January 30, 2009

Virtual Issues
Focus Issue: Astrophotonics (2009) Optics Express

Citation
H. Hundertmark, S. Rammler, T. Wilken, R. Holzwarth, T. W. Hänsch, and P. S. Russell, "Octave-spanning supercontinuum generated in SF6-glass PCF by a 1060 nm mode-locked fibre laser delivering 20 pJ per pulse," Opt. Express 17, 1919-1924 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-3-1919


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References

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