Influence of polarization direction on far field distribution of laser array

ren aihong; zhang rongzhu; sun nianchun

Volume 22 Issue 07

Jun. 2010

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(07): 0-

gao qiwen, li shaohui. Explosion dynamics of heteroclusters in ultraintense femtosecond laser field[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

ren aihong, zhang rongzhu, sun nianchun. Influence of polarization direction on far field distribution of laser array[J]. High Power Laser and Particle Beams, 2010, 22.

gao qiwen, li shaohui. Explosion dynamics of heteroclusters in ultraintense femtosecond laser field[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

ren aihong, zhang rongzhu, sun nianchun. Influence of polarization direction on far field distribution of laser array[J]. High Power Laser and Particle Beams, 2010, 22.

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Influence of polarization direction on far field distribution of laser array

1.
College of Electronic Information,Sichuan University,Chengdu 610064,China

Publish Date: 2010-06-30

Abstract

Abstract

To study the influence of polarization direction on far field of laser array with coherent combining, an onedimension analyses model of fiber laser array is established, and using Fourier optics, the expression for the far field intensity of coherent combining beams is deduced when the polarization direction of a single cell is deviated. Numerical calculation results show that, with the increasing of the deviation the maximum intensity of center lobe reduces, and the minimum intensity is no longer zero. The deviation of the polarization direction will not change the symmetry of the energy distribution. For the the array with 5 fiber lasers, when the deviation angle is π/2, the peak intensity will reduce to about 68% of the original．
- coherent combining,
- polarization direction,
- center lobe energy,
- maximum intensity

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