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One-Watt level mid-IR output, singly resonant, continuous-wave optical parametric oscillator pumped by a monolithic diode laser
A.F. Nieuwenhuis1, C.J. Lee1, B. Sumpf2, P.J.M. van der Slot1, G. Erbert2, and Klaus-J. Boller1
1 Laser physics and Nonlinear Optics Group, MESA + Institute for Nanotechnology, University of Twente, Enschede, The Netherlands
2 Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
Published in:
Opt. Express, vol. 18, no. 11, pp. 11123-11131 (2010).
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Abstract:
We report more than 1.1 Watt of idler power at 3373 nm in a
singly resonant optical parametric oscillator (SRO), directly pumped by a
single-frequency monolithic tapered diode laser. The SRO is based on a
periodically poled MgO:LiNbO3 crystal in a four mirror cavity and is
excited by 8.05 W of 1062 nm radiation. The SRO pump power at threshold
is 4 W. The internal slope-efficiency and conversion efficiency reach 89%
and 44% respectively. The signal and idler waves are temperature tuned in
the range of 1541 to 1600 nm and 3154 to 3415 nm respectively. To the
best of our knowledge, this is the highest output obtained for a diode
pumped optical parametric oscillator (OPO), and the first time a SRO is
directly pumped by a monolithic tapered diode laser.
OCIS codes:
(140.3600) Lasers, tunable; (140.5960) Semiconductor lasers; (190.4410)
Nonlinear optics, parametric processes.
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