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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 19 — Oct. 1, 2010
  • pp: 3210–3212

Efficient, high-power, ytterbium-fiber-laser-pumped picosecond optical parametric oscillator

O. Kokabee, A. Esteban-Martin, and M. Ebrahim-Zadeh  »View Author Affiliations


Optics Letters, Vol. 35, Issue 19, pp. 3210-3212 (2010)
http://dx.doi.org/10.1364/OL.35.003210


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Abstract

We report a high-power picosecond optical parametric oscillator (OPO) synchronously pumped by a Yb fiber laser at 1.064 μm , providing 11.7 W of total average power in the near to mid-IR at 73% extraction efficiency. The OPO, based on a 50 mm MgO:PPLN crystal, is pumped by 20.8 ps pulses at 81.1 MHz and can simultaneously deliver 7.1 W of signal at 1.56 μm and 4.6 W of idler at 3.33 μm for 16 W of pump power. The oscillator has a threshold of 740 mW , with maximum signal power of 7.4 W at 1.47 μm and idler power of 4.9 W at 3.08 μm at slope efficiencies of 51% and 31%, respectively. Wavelength coverage across 1.43 1.63 μm (signal) and 4.16 3.06 μm (idler) is obtained, with a total power of ~11 W and an extraction efficiency of ~68%, with pump depletion of ~78% maintained over most of the tuning range. The signal and idler output have a single-mode spatial profile and a peak-to-peak power stability of ± 1.8 % and ± 2.9 % over 1 h at the highest power, respectively. A signal pulse duration of 17.3 ps with a clean single-peak spectrum results in a time-bandwidth product of ~1.72, more than four times below the input pump pulses.

© 2010 Optical Society of America

OCIS Codes
(160.3730) Materials : Lithium niobate
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5390) Ultrafast optics : Picosecond phenomena

ToC Category:
Nonlinear Optics

History
Original Manuscript: June 30, 2010
Revised Manuscript: August 6, 2010
Manuscript Accepted: August 20, 2010
Published: September 21, 2010

Citation
O. Kokabee, A. Esteban-Martin, and M. Ebrahim-Zadeh, "Efficient, high-power, ytterbium-fiber-laser-pumped picosecond optical parametric oscillator," Opt. Lett. 35, 3210-3212 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-19-3210


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