中国物理B ›› 2011, Vol. 20 ›› Issue (5): 54204-054204.doi: 10.1088/1674-1056/20/5/054204

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Angular spectrum characters of high gain non-critical phase match optical parametric oscillators

刘建辉, 柳强, 巩马理   

  1. Center for Photonics and Electronics, State Key Laboratory of Tribology and Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China
  • 收稿日期:2010-07-07 修回日期:2011-01-17 出版日期:2011-05-15 发布日期:2011-05-15

Angular spectrum characters of high gain non-critical phase match optical parametric oscillators

Liu Jian-Hui(刘建辉), Liu Qiang(柳强), and Gong Ma-Li(巩马理)   

  1. Center for Photonics and Electronics, State Key Laboratory of Tribology and Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China
  • Received:2010-07-07 Revised:2011-01-17 Online:2011-05-15 Published:2011-05-15

摘要: The angular spectrum gain characters and the power magnification characters of high gain non-walk-off colinear optical parametric oscillators have been studied using the non-colinear phase match method for the first time. The experimental results of the KTiOAsO4 and the KTiOPO4 crystals are discussed in detail. At the high energy single resonant condition, low reflective ratio of the output mirror for the signal and long non-linear crystal are beneficial for small divergence angles. This method can also be used for other high gain non-walk-off phase match optical parametric processes.

Abstract: The angular spectrum gain characters and the power magnification characters of high gain non-walk-off colinear optical parametric oscillators have been studied using the non-colinear phase match method for the first time. The experimental results of the KTiOAsO4 and the KTiOPO4 crystals are discussed in detail. At the high energy single resonant condition, low reflective ratio of the output mirror for the signal and long non-linear crystal are beneficial for small divergence angles. This method can also be used for other high gain non-walk-off phase match optical parametric processes.

Key words: optical parametric oscillator, non-critical phase match, angular spectrum, divergence angle

中图分类号:  (Parametric down conversion and production of entangled photons)

  • 42.65.Lm
42.65.Yj (Optical parametric oscillators and amplifiers)