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Proceedings Paper

Effect of pulse chirp on small-scale self-focusing of femtosecond pulse with silk diffraction modulation
Author(s): Lifu Zhang; Xiquan Fu; Zehu Feng; Hua Yang; Shuangchun Wen
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Paper Abstract

We have both numerically and experimentally studied femtosecond chirped optical pulse undergoing self-focusing and splitting into multiple filamentation passing through carbon disulfide (CS2). From the experimental results, we obtain that broad bandwidth laser pass through a nonlinear medium (CS2) will occur modulation increase at the particular spatial position, and it shows good agreement with the simulation results. When the width of pulse increases (equal to the value of chirp add), modulation increase of chirped pulse beam will delay. After the modulation increase reaches to a certain value, it will stop increasing and appear new modulation frequency which bring optical beam to split into filamentation.

Paper Details

Date Published: 18 December 2007
PDF: 7 pages
Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 67834J (18 December 2007); doi: 10.1117/12.745550
Show Author Affiliations
Lifu Zhang, Hunan Univ. (China)
Xiquan Fu, Hunan Univ. (China)
Zehu Feng, Hunan Univ. (China)
Hua Yang, Hunan Univ. (China)
Shuangchun Wen, Hunan Univ. (China)

Published in SPIE Proceedings Vol. 6783:
Optical Transmission, Switching, and Subsystems V
Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama; Chang-Soo Park, Editor(s)

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