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Optics Letters

Optics Letters

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  • Vol. 24, Iss. 5 — Mar. 1, 1999
  • pp: 330–332

Nanosecond optical parametric oscillator based on large-aperture periodically poled RbTiOAsO4

H. Karlsson, M. Olson, G. Arvidsson, F. Laurell, U. Bäder, A. Borsutzky, R. Wallenstein, S. Wickström, and M. Gustafsson  »View Author Affiliations


Optics Letters, Vol. 24, Issue 5, pp. 330-332 (1999)
http://dx.doi.org/10.1364/OL.24.000330


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Abstract

We report on optical parametric oscillators (OPO’s) based on periodically poled RbTiOAsO4 (PP RTA), which are pumped by Q -switched solid-state lasers. With a diode-pumped Nd:YVO4 laser (pulse energy, 800µJ ; pulse duration, 5.5 ns; repetition rate, 1 kHz) the PP RTA OPO generated 1.58-µm signal and 3.26-µm idler radiation with a signal pulse energy of 45µJ . The large aperture of 3 mm×3 mm of the PP RTA crystal also permitted OPO operation with pump pulse energies as high as 65 mJ, provided by a flash-lamp-pumped Q -switched Nd:YAG laser (pulse duration, 20 ns; repetition rate, 10 Hz). With this pump source the OPO generated signal pulse energies as high as 17 mJ, corresponding to an efficiency of 26%. The performance of this OPO shows that large-aperture PP RTA crystals are well suited for pulsed nanosecond OPO operation with pump pulse energies of tens of millijoules.

© 1999 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing

Citation
H. Karlsson, M. Olson, G. Arvidsson, F. Laurell, U. Bäder, A. Borsutzky, R. Wallenstein, S. Wickström, and M. Gustafsson, "Nanosecond optical parametric oscillator based on large-aperture periodically poled RbTiOAsO4," Opt. Lett. 24, 330-332 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-5-330

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