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Applied Optics

Applied Optics


  • Vol. 36, Iss. 24 — Aug. 20, 1997
  • pp: 5898–5901

Simple, high-performance type II β-BaB2O4 optical parametric oscillator

Sheng Wu, Geoffrey A. Blake, Zhaoyang Sun, and Jiwu Ling  »View Author Affiliations

Applied Optics, Vol. 36, Issue 24, pp. 5898-5901 (1997)

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A visible/near-IR optical parametric oscillator (OPO) based on type II phase matching in β-BaB2 O4 (BBO) is described. Pumped at 355 nm, this OPO covers 410–2500 nm completely with a single set of standard Nd:YAG cavity optics. The output efficiency is >25%, the linewidth of the OPO is narrower than 1–2 cm-1 without the use of gratings or etalons, and the signal-beam divergence is <400 µrad. Three type I BBO doubling crystals are used to extend the tuning range from 208 to 415 nm. Doubling efficiencies as high as 40% are easily obtained. The reasons for the high doubling and overall system efficiency are discussed.

© 1997 Optical Society of America

Original Manuscript: October 3, 1996
Revised Manuscript: January 21, 1997
Published: August 20, 1997

Sheng Wu, Geoffrey A. Blake, Zhaoyang Sun, and Jiwu Ling, "Simple, high-performance type II β-BaB2O4 optical parametric oscillator," Appl. Opt. 36, 5898-5901 (1997)

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