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Proceedings Paper

Flat-top temporal and spatial profiles femtosecond pulse beam generated by phase only modulating
Author(s): Yong-ming Nie; Jun-hui Liu; Pu-hua Huang; Ji-zhen Tang; Xuehua Yang; Hao-tong Ma; Xiu-jian Li
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Paper Abstract

The method for generating temporal flat-top waveform and spatial flat-top profile femtosecond pulse beam by phase and polarization controlling is proposed and demonstrated. Based on direct wave front phase modulating, flat-top spatial intensity distribution can be obtained. Combining a folded 4f zero-dispersion system with a polarization controlling setup, the temporal flat-top waveform is generated. Experimental results indicate that for the input both temporal and spatial Gaussian pulse beam with 363 fs temporal width and 1.5 mm beam waist, the temporal width of the output shaped pulse beam is 1.2 ps and 1.9mm beam waist, and the rms variation is about 9.2%, which prove that the temporal flat-top and spatial flat-top femtosecond pulse beam can be generated effectively.

Paper Details

Date Published: 17 September 2013
PDF: 5 pages
Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89040O (17 September 2013); doi: 10.1117/12.2033032
Show Author Affiliations
Yong-ming Nie, China Satellite Maritime Tracking and Control Dept. (China)
National Univ. of Defense Technology (China)
Jun-hui Liu, China Satellite Maritime Tracking and Control Dept. (China)
Pu-hua Huang, China Satellite Maritime Tracking and Control Dept. (China)
Ji-zhen Tang, China Satellite Maritime Tracking and Control Dept. (China)
Xuehua Yang, China Satellite Maritime Tracking and Control Dept. (China)
Hao-tong Ma, National Univ. of Defense Technology (China)
Xiu-jian Li, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8904:
International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications
Andreas Tünnermann; Zejin Liu; Pu Wang; Chun Tang, Editor(s)

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