Chinese Journal of Lasers, Volume. 48, Issue 17, 1705003(2021)
Single Exposure Beam Quality Analysis Technique with Binary Amplitude Modulation
Fig. 3. Simulation experiment. (a) Amplitude and phase of the incident wave on the modulation board; (b) unsaturated diffraction spot pattern, the upper right corner is the pixel curve at the dashed line; (c) intensity map of the modulation plate; (d) amplitude and phase of the incident wave reconstructed by CAMI; (e) diffraction spot pattern after saturation treatment, the upper right corner is the enlarged view of the central area, the lower right corner is the pixel curve at the dashed line; (f) reconstructed diffraction spot pattern, the lower right corner is the pixel curve at the dashed line
Fig. 4. Reconstructed results. (a) Intensity of wavefront on plane x-z; (b)--(f) beam amplitude diagram on plane x-y at -20, -10, 0, 10, 20 mm away from modulation plate
Fig. 5. Measurement of the He-Ne laser. (a) Amplitude plate distribution ; (b) diffraction shot recorded experimentally; (c) wavefront distribution of amplitude plate;(d) reconstructed illumination amplitude of amplitude plate
Fig. 6. Pulsed light measurement experiment. (a) Measurement optical path of CAMI; (b) single diffraction shot recorded experimentally; (c) recovered diffraction spot pattern;(d) reconstructed illumination amplitude of amplitude plate; (e) reconstructed illumination phase of amplitude plate
Fig. 7. Reconstruction results. (a)--(e)Reconstructed incident wave amplitude results on plane x-y at -100, -50, 0, 50, 100 mm away from modulation plate; (f)--(h) x-y plane, x-z plane, y-z plane Gaussian wave reconstruction results
|
Get Citation
Copy Citation Text
Siyuan He, Xingchen Pan, Cheng Liu, Jianqiang Zhu. Single Exposure Beam Quality Analysis Technique with Binary Amplitude Modulation[J]. Chinese Journal of Lasers, 2021, 48(17): 1705003
Category: Beam transmission and control
Received: Feb. 2, 2021
Accepted: Mar. 9, 2021
Published Online: Sep. 1, 2021
The Author Email: Pan Xingchen (xchpan@siom.ac.cn)