Theoretical analysis of the beam quality of two-side pumped symmetrically transverse flow liquid lasers

MA Zai-ru

doi:10.3969/j.issn.1001-3806.2011.04.025

In order to improve the beam quality of a two-side-pumped symmetrically transverse flow continuous liquid laser, the output beam quality M2 factor and light intensity distribution at different flow velocities were simulated on the condition of the liquid laser pumped symmetrically with two sides diode lasers,the heat distribution in the liquid medium was analyzed by means of ANSYS software.Simulation results show that is an optimum flow velocity for best beam quality.For both the gain and refractive index in the laser system distribute symmetrically with the pumping direction,after compensation for the wavefront error with cylindrical lenses,the M2 factor was decreased from 24 to 12.5.

Theoretical analysis of the beam quality of two-side pumped symmetrically transverse flow liquid lasers

Corresponding author: MA Zai-ru, simzairu@sina.com.cn;

1. Institute of Applied Physics, Xihua University, Chengdu 610039, China;

2. College of Architecture and Environmental, Si-chuan University, Chengdu 610064, China

3. College of Electronic and Information Engineering, Sichuan University, Chengdu 610064, China

Received Date: 2010-09-16

Accepted Date: 2010-11-29

Available Online: 2011-07-25

Abstract: In order to improve the beam quality of a two-side-pumped symmetrically transverse flow continuous liquid laser, the output beam quality M2 factor and light intensity distribution at different flow velocities were simulated on the condition of the liquid laser pumped symmetrically with two sides diode lasers,the heat distribution in the liquid medium was analyzed by means of ANSYS software.Simulation results show that is an optimum flow velocity for best beam quality.For both the gain and refractive index in the laser system distribute symmetrically with the pumping direction,after compensation for the wavefront error with cylindrical lenses,the M2 factor was decreased from 24 to 12.5.

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Reference (17)

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Theoretical analysis of the beam quality of two-side pumped symmetrically transverse flow liquid lasers

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