具有附加腔内非线性介质的克尔透镜锁模钛宝石激光器。

Kerr-lens mode-locked Ti:sapphire laser with an additional intracavity nonlinear medium.

作者信息

Han Xiaohong, Zeng Heping

机构信息

State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China.

出版信息

Opt Express. 2008 Nov 10;16(23):18883-8. doi: 10.1364/oe.16.018875.

DOI:10.1364/oe.16.018875

PMID:19581978

Abstract

We demonstrate a Kerr-lens mode-locked Ti:sapphire laser with an additional Yb(3+) doped Potassium Yttrium Tungstate crystal (Yb:KYW) in the laser cavity, where not only the pump threshold to start mode-locking but also the stable regions to maintain mode-locking can be well-controlled by varying the position of Yb:KYW nearby the confocal focus to change the intracavity Kerr-effects. The pump threshold is reduced down to 800 mW to start the mode-locking operation, which is about 27% less than that for a Ti:sapphire laser without an additional Yb:KYW.

摘要

我们展示了一种克尔透镜锁模钛宝石激光器，其激光腔内额外添加了掺镱（Yb(3+)）的钨酸钇钾晶体（Yb:KYW）。通过改变Yb:KYW在共焦焦点附近的位置来改变腔内克尔效应，不仅可以很好地控制启动锁模的泵浦阈值，还能控制维持锁模的稳定区域。启动锁模操作的泵浦阈值降低至800毫瓦，这比没有额外Yb:KYW的钛宝石激光器低约27%。