Experimental study on laser beam diagnostics based on fiber array

Yong Wu; Pengling Yang; Ping Wang; Weiping Liu; Zhenbao Wang; Junjie Wu; Xisheng Ye

doi:10.1117/12.2011084

16 May 2013 Experimental study on laser beam diagnostics based on fiber array

Yong Wu, Pengling Yang, Ping Wang, Weiping Liu, Zhenbao Wang, Junjie Wu, Xisheng Ye

Proceedings Volume 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012); 87961X (2013) https://doi.org/10.1117/12.2011084
Event: 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 2012, Xi'an, Shaanxi, China

Abstract

A method for direct laser beam diagnostics based on fiber array is introduced. The designing principle and configuration of the method are presented. The experimental results show that it can provide laser power density distribution information with a high spatial resolution better than 3mm and with an error of measurement less than 3%. The theoretical analysis by finite element method(FEM) for laser radiation indicates that this method should be used to measure the high energy laser beam with diameter of several hundred millimeters for tens of seconds. In addition, the results of fiber array technique are compared, qualitatively, with the spatial beam profile obtained by a near infrared charge coupled device(NIR-CCD). These two methods yield consistent results.

Citation Download Citation

Yong Wu, Pengling Yang, Ping Wang, Weiping Liu, Zhenbao Wang, Junjie Wu, and Xisheng Ye "Experimental study on laser beam diagnostics based on fiber array", Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 87961X (16 May 2013); https://doi.org/10.1117/12.2011084

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