Measurement of spatiotemporal characteristics of femtosecond laser pulses by a modified single-shot autocorrelation

被引：0

作者：

Deng, Yangbao ^{[1
,2
]}

Deng, Shuguang ^{[2
]}

Xiong, Cuixiu ^{[2
]}

Zhang, Guangfu ^{[2
]}

Tian, Ye ^{[2
]}

Shen, Lianfeng ^{[1
]}

机构：

[1] National Mobile Communications Research Laboratory, Southeast University, Nanjing

[2] College of Communication and Electronic Engineering, Hunan City University, Yiyang

来源：

Journal of Southeast University (English Edition) | 2014年 / 30卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Femtosecond laser pulses; Modified single-shot autocorrelation; Spatiotemporal characteristics; Ultrafast laser technology;

D O I：

10.3969/j.issn.1003-7985.2014.04.002

中图分类号：

学科分类号：

摘要：

To overcome the shortcomings of the single-shot autocorrelation (SSA) where only one pulse width is obtained when the SSA is applied to measure the pulse width of ultrashort laser pulses, a modified SSA for measuring the spatiotemporal characteristics of ultrashort laser pulses at different spatial positions is proposed. The spatiotemporal characteristics of femtosecond laser pulses output from the Ti:sapphire regenerative amplifier system are experimentally measured by the proposed method. It was found that the complex spatial characteristics are measured accurately. The pulse widths at different spatial positions are various, which obey the Gaussian distribution. The pulse width at the same spatial position becomes narrow with the increase in input average power when femtosecond laser pulses pass through a carbon disulfide (CS2) nonlinear medium. The experimental results verify that the proposed method is valid for measuring the spatiotemporal characteristics of ultrashort laser pulses at different spatial positions. ©, 2014, Southeast University. All right reserved.

引用

页码：411 / 415

页数：4

共 18 条

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