1530nm 飞秒拉曼压缩激光器及像差补偿。

Picosecond Raman compression laser at 1530 nm with aberration compensation.

机构信息

Institute of Applied Physics, Nizhny Novgorod 603950, Russia.

出版信息

Opt Lett. 2013 Sep 1;38(17):3237-40. doi: 10.1364/OL.38.003237.

DOI:10.1364/OL.38.003237

Abstract

A passively Q-switched Nd:YAG laser with a master-oscillator power-amplifier configuration based on Brillouin and Raman pulse compression has been developed. The laser operates at 100 Hz repetition rate, producing 50 mJ pulses of approximately 30 ps duration at 1530 nm wavelength with near-diffraction-limited beam quality (M2≤1.2). The effect of spherical aberration in thermally loaded Nd:YAG rods was studied, and efficient aberration compensation was achieved by use of a specially designed aspheric element.

摘要

已经开发出一种基于受激布里渊和受激拉曼脉冲压缩的主振荡器功率放大器结构的被动调 Q Nd:YAG 激光器。该激光器以 100 Hz 的重复率运行，在 1530nm 波长下产生 50mJ 左右的 30ps 脉冲，光束质量接近衍射极限（M2≤1.2）。研究了热加载 Nd:YAG 棒中的球差效应，并通过使用专门设计的非球面元件实现了有效的像差补偿。