Temporal multiplexing for measurement of temporal profile on SG-Ⅲ prototype laser facility

LIU Hua; XU Long-bo; PENG Zhi-tao; XIA Yan-wen; TANG Jun; SUN Zhi-hong

doi:10.3969/j.issn.1001-3806.2010.02.004

The system of measuring temporal profile for multi-beam of near infrared was developed, considering the multi-beams, the narrow pulse width of each beam, the great aperture of beam of light, and the large far-field drift for high power laser facility.The beam uniform assemble for fiber sampling of beam coupling was used,the technique of time multiplexing for the delay of time was adopted, and the power time history in the SG-Ⅲ prototype laser facility's 8 beam laser was measured.After measuring and analyzing the temporal profile the SG-Ⅲ prototype laser facility made in 2008,the relative expanded uncertainty of the measuring system was less than 2.5%.The results showed that the anti-jamming ability of the measuring system was improved.The measuring system is much more reliable and costly.

Temporal multiplexing for measurement of temporal profile on SG-Ⅲ prototype laser facility

1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 2009-02-20

Accepted Date: 2009-04-02

Available Online: 2010-03-25

Abstract: The system of measuring temporal profile for multi-beam of near infrared was developed, considering the multi-beams, the narrow pulse width of each beam, the great aperture of beam of light, and the large far-field drift for high power laser facility.The beam uniform assemble for fiber sampling of beam coupling was used,the technique of time multiplexing for the delay of time was adopted, and the power time history in the SG-Ⅲ prototype laser facility's 8 beam laser was measured.After measuring and analyzing the temporal profile the SG-Ⅲ prototype laser facility made in 2008,the relative expanded uncertainty of the measuring system was less than 2.5%.The results showed that the anti-jamming ability of the measuring system was improved.The measuring system is much more reliable and costly.

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Reference (10)

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Temporal multiplexing for measurement of temporal profile on SG-Ⅲ prototype laser facility

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