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Optics Letters

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  • Vol. 26, Iss. 6 — Mar. 15, 2001
  • pp: 352–354

Optical parametric amplification in periodically poled KTiOPO<sub>4</sub> seeded by an Er–Yb:glass microchip laser

J. Hellström, G. Karlsson, V. Pasiskevicius, and F. Laurell  »View Author Affiliations


Optics Letters, Vol. 26, Issue 6, pp. 352-354 (2001)
http://dx.doi.org/10.1364/OL.26.000352


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Abstract

An optical parametric amplifier based on periodically poled KTiOPO<sub>4</sub> was used to generate 3-ns pulses at 1.544 μm . The device was pumped by a Q-switched Nd:YAG laser, and the signal output-pulse energy reached 71 μJ ; the maximum gain was 66 dB. The seed source was an Er–Yb:glass microchip laser. A theoretical fit to experimental data gave an effective nonlinear coefficient of 9.7 pm/V , close to the highest values reported for periodically poled KTiOPO<sub>4</sub> . Furthermore, the broad parametric gain observed could be used for broadband pulse amplification.

© 2001 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

Citation
J. Hellström, G. Karlsson, V. Pasiskevicius, and F. Laurell, "Optical parametric amplification in periodically poled KTiOPO<sub>4</sub> seeded by an Er–Yb:glass microchip laser," Opt. Lett. 26, 352-354 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-6-352


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