载频相位稳定的掺镱钾铌酸锂激光放大器。

Carrier envelope phase stabilization of a Yb:KGW laser amplifier.

机构信息

Photonics Institute, Vienna University of Technology, Vienna, Austria.

出版信息

Opt Lett. 2011 Aug 15;36(16):3242-4. doi: 10.1364/OL.36.003242.

DOI:10.1364/OL.36.003242

Abstract

In this paper we report on the active stabilization of the carrier envelope phase (CEP) of a Yb:KGW chirped pulse amplifier laser system seeded by a Yb-doped solid-state Kerr-lens mode-locked oscillator. The regenerative amplifier delivers 180 fs CEP stable pulses of 30 μJ-1 mJ energy at a repetition rate tunable from 1 to 200 kHz. The bandwidth of the feedback loop was extended by a factor of 5 using a specially designed high-pass filter, which resulted in a dramatic decrease of CEP jitter below 0.45 rad after the amplifier.

摘要

本文报道了基于掺镱固体克尔透镜锁模振荡器种子源的 Yb:KGW 啁啾脉冲放大激光系统中载波包络相位（CEP）的主动稳定。再生放大器可提供重复频率可调谐范围为 1 至 200 kHz 的 180 fsCEP 稳定脉冲，能量为 30 μJ 至 1 mJ。通过使用专门设计的高通滤波器，将反馈环路的带宽扩展了 5 倍，这使得放大器后 CEP 抖动显著降低至 0.45 rad 以下。