基于周期性极化化学计量比钽酸锂的高功率飞秒光纤反馈光学参量振荡器。

High-power femtosecond fiber-feedback optical parametric oscillator based on periodically poled stoichiometric LiTaO3.

作者信息

Südmeyer T, Innerhofer E, Brunner F, Paschotta R, Usami T, Ito H, Kurimura S, Kitamura K, Hanna D C, Keller U

机构信息

Ultrafast Laser Physics, Swiss Federal Institute of Technology, ETH Hönggerberg-HPT, CH-8093 Zurich, Switzerland.

出版信息

Opt Lett. 2004 May 15;29(10):1111-3. doi: 10.1364/ol.29.001111.

DOI:10.1364/ol.29.001111

PMID:15182002

Abstract

We demonstrate a synchronously pumped high-gain optical parametric oscillator with feedback through a fiber, using a passively mode-locked Yb:YAG thin-disk laser as a pump source. We obtain as much as 19-W average signal power at a wavelength of 1.45 microm in 840-fs pulses and 7.8 W of idler power at 3.57 microm. The repetition rate of the pulses is 56 MHz, and the transverse beam quality of the generated signal is M2 < 1.6.

摘要

我们展示了一种通过光纤进行反馈的同步泵浦高增益光学参量振荡器，它使用被动锁模Yb:YAG薄片激光器作为泵浦源。我们在840飞秒脉冲中，在波长为1.45微米处获得了高达19瓦的平均信号功率，在3.57微米处获得了7.8瓦的闲频光功率。脉冲的重复频率为56兆赫，所产生信号的横向光束质量为M2 < 1.6。