Far-field intensity distribution of beam generated by Gaussian mirror resonator

2005 ◽  
Vol 248 (1-3) ◽  
pp. 185-189 ◽  
Author(s):  
Degang Deng ◽  
XiaoYong Fu ◽  
Youwei Tian ◽  
Kui Yi ◽  
Jianda Shao ◽  
...  
Keyword(s):  
Field Intensity ◽  
Intensity Distribution ◽  
Far Field ◽  
Field Intensity Distribution

scholarly journals Measurement of the far field intensity distribution of a bent and cleaved fiber taper

2007 ◽  
Vol 15 (11) ◽  
pp. 6988
Author(s):  
Makan Mohageg ◽  
Anatoliy A. Savchenkov ◽  
Vladimir S. Ilchenko ◽  
Lute Maleki
Keyword(s):  
Field Intensity ◽  
Intensity Distribution ◽  
Far Field ◽  
Fiber Taper ◽  
Field Intensity Distribution

scholarly journals A Fast Calculation Method of Far-Field Intensity Distribution with Point Spread Function Convolution for High Energy Laser Propagation

2021 ◽  
Vol 11 (10) ◽  
pp. 4450
Author(s):  
Huimin Ma ◽  
Pengfei Zhang ◽  
Jinghui Zhang ◽  
Haiqiu Liu ◽  
Chengyu Fan ◽  
...  
Keyword(s):  
Field Intensity ◽  
Intensity Distribution ◽  
Engineering Application ◽  
High Energy ◽  
Far Field ◽  
Laser Propagation ◽  
Thermal Blooming ◽  
Energy Laser ◽  
High Energy Laser ◽  
Field Intensity Distribution

The turbulence effect, thermal blooming effect, laser beam aberration, platform jitter, and other effects in the process of high energy laser propagation in the atmosphere will cause serious degradation of laser beam quality, which will have a negative impact on the actual application of laser propagation engineering. It is important in the engineering application of high-energy laser propagation to evaluate the far-field intensity distribution quickly. Based on the optical transfer function (OTF) theory of imaging system, the propagation process of high-energy lasers is modeled as the imaging process of point source. By using the convolution of point spread function (PSF) of jitter, turbulence, thermal blooming, and aberration of emission system, fast calculation of the far-field intensity distribution of high energy laser is realized. The calculation results are compared with those obtained by the 4D wave optics simulation program in different propagation scenarios. The results show that the calculated facula distribution and encircled energy of this method are in good agreement with the simulation results of wave optics, which can realize the fast and accurate evaluation of the far-field intensity distribution of high-energy laser propagation and provide a reference for practical engineering application.

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