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Title: Maximization of second-harmonic power using normal-cut nonlinear crystals in a high-enhancement external cavity
Authors: Onoda, Yugo
Ikeda, Michihiko
Sugiyama, Kazuhiko  kyouindb  KAKEN_id  orcid (unconfirmed)
Yokoyama, Haruhisa
Kitano, Masao  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 杉山, 和彦
Issue Date: 1-Mar-2009
Publisher: Optical Society of America
Journal title: Applied Optics
Volume: 48
Issue: 7
Start page: 1366
End page: 1370
Abstract: When an antireflection-coated normal-cut nonlinear crystal is used in an external cavity for the generation of high second-harmonic power, a small residual reflection at the crystal facets causes a round-trip loss and prevents the realization of a large fundamental enhancement. This problem is eliminated when the reflected beams at the crystal facets are subject to constructive interference. We demonstrate that the temperature tuning of a β-BaB2O4 crystal of at most 3 K is sufficient to realize constructive interference at any wavelength. We achieve an enhancement factor of 125, and a second-harmonic power of 125 mW is generated at 398 nm from a fundamental power of 390 mW .
Rights: © 2009 Optical Society of America
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
DOI(Published Version): 10.1364/AO.48.001366
Appears in Collections:Journal Articles

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