中国物理B ›› 2012, Vol. 21 ›› Issue (3): 34213-034213.doi: 10.1088/1674-1056/21/3/034213

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

姚宝权,李纲,朱国利,蒙裴贝,鞠有伦,王月珠   

  • 收稿日期:2010-10-17 修回日期:2011-09-10 出版日期:2012-02-15 发布日期:2012-02-15
  • 通讯作者: 姚宝权,yaobq08@hit.edu.cn E-mail:yaobq08@hit.edu.cn

Comparative investigation of long-wave infrared generation based on ZnGeP2 and CdSe optical parametric oscillators

Yao Bao-Quan(姚宝权)†, Li Gang(李纲), Zhu Guo-Li(朱国利), Meng Pei-Bei(蒙裴贝), Ju You-Lun(鞠有伦), and Wang Yue-Zhu(王月珠)   

  1. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China
  • Received:2010-10-17 Revised:2011-09-10 Online:2012-02-15 Published:2012-02-15
  • Contact: Yao Bao-Quan,yaobq08@hit.edu.cn E-mail:yaobq08@hit.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60878011 and 61078008) and the Program for New Century Excellent Talents in University, China (Grant No. NCET-10-0067).

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Abstract: Long-wave infrared (IR) generation based on type-II (o→e+o) phase matching ZnGeP2 (ZGP) and CdSe optical parametric oscillators (OPOs) pumped by a 2.05 μm Tm,Ho:GdVO4 laser is reported. The comparisons of the birefringent walk-off effect and the oscillation threshold between ZGP and CdSe OPOs are performed theoretically and experimentally. For the ZGP OPO, up to 419 mW output at 8.04 μm is obtained at the 8 kHz pump pulse repetition frequency (PRF) with a slope efficiency of 7.6%. This ZGP OPO can be continuously tuned from 7.8 to 8.5 μm. For the CdSe OPO, we demonstrate a 64 mW output at 8.9 μm with a single crystal 28 mm in length.

Key words: long-wave infrared generation, ZGP/CdSe optical parametric oscillator, birefringent walk-off effect, oscillation threshold

中图分类号:  (Optical parametric oscillators and amplifiers)

  • 42.65.Yj
42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials) 42.65.Lm (Parametric down conversion and production of entangled photons)