[1] Deng Yangbao, Deng Shuguang, Xiong Cuixiu, et al. Measurement of spatiotemporal characteristics of femtosecondlaser pulses by a modified single-shot autocorrelation [J]. Journal of Southeast University (English Edition), 2014, 30 (4): 411-415. [doi:10.3969/j.issn.1003-7985.2014.04.002]

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Measurement of spatiotemporal characteristics of femtosecondlaser pulses by a modified single-shot autocorrelation()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

30

Issue:

2014 4

Page:

411-415

Research Field:

Electronic Science and Engineering

Publishing date:

2014-12-31

Info

Title:

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

Author(s):

Deng Yangbao¹;  2;  Deng Shuguang²;  Xiong Cuixiu²;  Zhang Guangfu²;  Tian Ye²;  Shen Lianfeng¹

¹National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
²College of Communication and Electronic Engineering, Hunan City University, Yiyang 413000, China

Keywords:

spatiotemporal characteristics;  modified single-shot autocorrelation;  femtosecond laser pulses;  ultrafast laser technology

PACS:

TN2

DOI:

10.3969/j.issn.1003-7985.2014.04.002

Abstract:

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.

References:

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Memo

Memo:

Biographies: Deng Yangbao(1983—), male, doctor, lecturer; Shen Lianfeng(corresponding author), male, professor, lfshen@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.61171081, No.61471164), the Natural Science Foundation of Hunan Province(No.14JJ6043).
Citation: Deng Yangbao, Deng Shuguang, Xiong Cuixiu, et al.Measurement of spatiotemporal characteristics of femtosecond laser pulses by a modified single-shot autocorrelation[J].Journal of Southeast University(English Edition), 2014, 30(4):411-415.[doi:10.3969/j.issn.1003-7985.2014.04.002]

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