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Volume 27 Issue 6
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Citation:
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Numerical simulation of the thermal effect in a beam control system

  • 1.

    Institute of Physics and Chemistry, Sichuan University, Chendu, 610064;

  • 2.

    College of Physics & Communication Electronics, Jiangxi Normal University, Nanchang, 330027

  • Received Date: 2003-03-21
    Accepted Date: 2003-05-26
  • A four-dimension simulation code is developed,which enables us to study the thermal effect of high-power lasers propagating through a beam control system.As illustrated examples,the thermal effects of high-power lasers with initial Gaussian and flat-topped profiles in passage through the beam control system on the beam quality in the far field characterized by the Strehl ratio,the focussiablity(i.e.,radius of the encircled 86.5% power),astigmatism parameter and shift of the beam gravity are studied.It is shown that the beam quality in the far field depends on the initial field distribution,and is degraded with increasing emissive power.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Numerical simulation of the thermal effect in a beam control system

  • 1. Institute of Physics and Chemistry, Sichuan University, Chendu, 610064;
  • 2. College of Physics & Communication Electronics, Jiangxi Normal University, Nanchang, 330027
  • Received Date: 2003-03-21
  • Accepted Date: 2003-05-26
  • Available Online: 2003-11-25

Abstract: A four-dimension simulation code is developed,which enables us to study the thermal effect of high-power lasers propagating through a beam control system.As illustrated examples,the thermal effects of high-power lasers with initial Gaussian and flat-topped profiles in passage through the beam control system on the beam quality in the far field characterized by the Strehl ratio,the focussiablity(i.e.,radius of the encircled 86.5% power),astigmatism parameter and shift of the beam gravity are studied.It is shown that the beam quality in the far field depends on the initial field distribution,and is degraded with increasing emissive power.

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