Investigation on intracavity second-harmonic generation at 1.06 μm in YCa4O(BO3)3 by using an end-pumped Nd: YVO4 laser

Junhai Liu, Changqing Wang, Shujun Zhang, Chenlin Du, Junhua Lu, Jiyang Wang, Huanchu Chen, Zongshu Shao, Minhua Jiang

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Intracavity second-harmonic generation (SHG) at 1.06 μm in YCa4O(BO3)3 (YCOB) crystals cut for different type I phase-matching directions of (θ, φ) = (64.5°, 35.5°) and (33°, 9°) was investigated by employing an end-pumped Nd:YVO4 laser formed with a three-mirror folded resonator. CW SHG output power of 2.35 W was obtained in the phase-matching direction of (64.5°, 35.5°) with an optical conversion efficiency of 18.1%, while the effective intracavity SHG efficiency was determined to be 42%. The intracavity SHG output was found to be insensitive to the varying temperature in YCOB crystal. The internal losses of YCOB crystal were measured to be 0.013 cm-1.

Original languageEnglish (US)
Pages (from-to)187-191
Number of pages5
JournalOptics Communications
Issue number1-3
StatePublished - Aug 1 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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