皮秒脉冲来自使用 Yb:YAG 和 Yb:GSAG 的低温冷却复合放大器。

Picosecond pulses from a cryogenically cooled, composite amplifier using Yb:YAG and Yb:GSAG.

机构信息

Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02420, USA.

出版信息

Opt Lett. 2011 Feb 1;36(3):340-2. doi: 10.1364/OL.36.000340.

DOI:10.1364/OL.36.000340

Abstract

A cryogenic Yb amplifier using two laser materials, Gd3Sc2Al3O12 and Y3Al5O12 (YAG), has been used to obtain 70 W average power at 5 kHz pulse repetition frequency; the output was compressed to 1.6 ps, compared with an input compressible to 1.4 ps. The gain broadening obtained by combining two media enables shorter pulses than using Yb:YAG alone but retains the power-scaling advantages of cryogenic Yb:YAG.

摘要

一种使用两种激光材料，Gd3Sc2Al3O12 和 Y3Al5O12（YAG）的低温 Yb 放大器，已被用于在 5 kHz 脉冲重复频率下获得 70 W 的平均功率；输出被压缩到 1.6 ps，而输入可压缩到 1.4 ps。通过组合两种介质获得的增益展宽可以实现比单独使用 Yb：YAG 更短的脉冲，但保留了低温 Yb：YAG 的功率扩展优势。