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

• 作 者: 刘建辉 柳强 巩马理
• 机 构: Center for Photonics and Electronics,State Key Laboratory of Tribology and Department of Precision I
• 出 处: Chinese Physics B
• 发表日期: 2011年05期
• 关键词: match characters parametric divergence reflective resonant mirror angular pumpin

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 KTiOAsO 4 and the KTiOPO 4 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.

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 KTiOAsO 4 and the KTiOPO 4 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. THe method can also be used for other high gain non-walk- off phase match optical parametric processes.