Theoretical design of nanosecond near infrared KTP optical parametric oscillator

MIAO Jie-guang; TAN Hui-ming; BIAN Hui-kun

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Theoretical design of nanosecond near infrared KTP optical parametric oscillator

更新时间：2020-08-12

- Theoretical design of nanosecond near infrared KTP optical parametric oscillator
- Optics and Precision Engineering Vol. 14, Issue 3, Pages: 374-377(2006)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院研究生院,北京 100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： O437.4;TN753.92
- Received：28 September 2005，
  
  Revised：10 January 2006，
  
  Published Online：30 June 2006，
  
  Published：30 June 2006
- 稿件说明：
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MIAO Jie-guang, TAN Hui-ming, BIAN Hui-kun. Theoretical design of nanosecond near infrared KTP optical parametric oscillator[J]. Optics and precision engineering, 2006, 14(3): 374-377.
DOI：

MIAO Jie-guang, TAN Hui-ming, BIAN Hui-kun. Theoretical design of nanosecond near infrared KTP optical parametric oscillator[J]. Optics and precision engineering, 2006, 14(3): 374-377. DOI：

摘要

对纳秒近红外KTP光学参量振荡器(KTP-OPO)进行了全面系统的理论设计。讨论了KTP-OPO的相位匹配

计算了KTP的走离角、允许角和有效非线性系数

数值模拟了角度调谐曲线和增益曲线

从而确定了调谐范围为1.35~2.0 μm

晶体切割角为59.6°。同时

分析了晶体长度、走离角以及输出镜耦合率对OPO阈值的影响

总结了降低参量阈值的几种方法。

Abstract

A general theoretical design of nanosecond near infrared KTP optical parametric oscillator was presented. Based on the calculation and discussion on the phase-matching

walk-off angle

acceptance angle and effective nonlinear coefficient for the KTP crystal

and on the numerical simulations of the angle-tuning curve and gain curve

the tuning spectrum and cutting angle of the KTP was finally established as 1.35 ~2.0 μm and 59.6°

respectively. At the same time

the impact of the crystal length

walk-off angle and the output coupler’s reflectivity on the threshold of a Optical Parametric Oscillator (OPO) was analyzed. Besides

several methods of reducing the OPO threshold were summed up.

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Keywords

references

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