Thermal blooming compensation using coherent optical adaptive techniques (COAT)
作者:
William B. Bridges,
James E. Pearson,
期刊:
Applied Physics Letters
(AIP Available online 1975)
卷期:
Volume 26,
issue 9
页码: 539-543
ISSN:0003-6951
年代: 1975
DOI:10.1063/1.88248
出版商: AIP
数据来源: AIP
摘要:
Real‐time compensation for thermally induced beam distortion has been demonstrated using a phase‐adaptive aperture subdivided into 18 elements coupled with an 18‐channel multidither servo system. The results were obtained using an argon ion laser and a nonlinear liquid cell placed in the near field of the transmitted beam. The system increased the peak beam irradiance by more than a factor of 4 at the highest power used and reduced the beamwidth by a factor of 5.4 from the uncorrected bloomed case. A comparison with predictions from existing theory is given.
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