Investigation of spatial beam profiles of a femtosecond Ti:sapphire laser amplifier

Tao Liu; You-bo Zhao; Tie-qun Zhang; Ming-wei Wang; Xiao-nong Zhu

doi:10.1117/12.575660

26 January 2005 Investigation of spatial beam profiles of a femtosecond Ti:sapphire laser amplifier

Tao Liu, You-bo Zhao, Tie-qun Zhang, Ming-wei Wang, Xiao-nong Zhu

Proceedings Volume 5627, High-Power Lasers and Applications III; (2005) https://doi.org/10.1117/12.575660
Event: Photonics Asia, 2004, Beijing, China

Abstract

With a homemade laser beam profile measurement system, the characteristics of the spatial beam profile of 40 GW amplified femtosecond laser pulses have been studied. It is found that the laser beam profile has better quality at lower pump current, and the beam quality decreases as the pump current increases. In particular, the light intensity at the central area of the femtosecond laser beam may actually become weaker at high current than that at the low current. It is also found that within the multipass amplification process the beam quality of the pump laser has a great impact on the spatial beam profile of the femtosecond laser pulses.

Citation Download Citation

Tao Liu, You-bo Zhao, Tie-qun Zhang, Ming-wei Wang, and Xiao-nong Zhu "Investigation of spatial beam profiles of a femtosecond Ti:sapphire laser amplifier", Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); https://doi.org/10.1117/12.575660

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