由贝塞尔光束泵浦的周期极化磷酸钛氧钾中的单共振光学参量振荡器

Singly resonant optical parametric oscillator in periodically poled KTiOPO(4) pumped by a Bessel beam.

作者信息

Pasiskevicius V, Karlsson H, Tellefsen J A, Laurell F, Butkus R, Piskarskas A, Smilgevi Ius V, Stabinis A

出版信息

Opt Lett. 2000 Jul 1;25(13):969-71. doi: 10.1364/ol.25.000969.

DOI:10.1364/ol.25.000969

Abstract

Conical pumping was used in a periodically poled KTiOPO(4) optical parametric oscillator for singly resonant idler generation in a nearly diffraction-limited axial beam. A single signal-idler pair was generated over the whole tuning range by use of asymmetric reflectivity of the OPO mirrors. Pump depletion of 40% and total conversion efficiency of 27% were obtained. Additional OPO tuning capability was demonstrated by adjustment of the angle of the conical pump beam.

摘要

在一个周期性极化的磷酸钛氧钾（KTiOPO₄）光学参量振荡器中，采用锥形泵浦来产生近乎衍射极限的轴向光束中的单共振闲频光。通过使用光学参量振荡器（OPO）反射镜的非对称反射率，在整个调谐范围内产生了一对信号 - 闲频光。实现了40%的泵浦损耗和27%的总转换效率。通过调整锥形泵浦光束的角度，展示了额外的OPO调谐能力。