Adaptive control based on the discrimination of the sharpness-function gradient in an optical process

A. B. Aleksandrov, P. P. Inshin
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Abstract

Signals proportional to components of the gradient of the sharpness function can be generated by optical methods. A numerical simulation indicates that this approach would be effective in work with low light fluxes, for which quantum detection effects are important.
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光学过程中基于锐度函数梯度判别的自适应控制
通过光学方法可以产生与锐度函数梯度分量成比例的信号。数值模拟表明,这种方法在低光通量的工作中是有效的,因为量子探测效应很重要。
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Large-Aperture CO2 Amplifier Fast objective for focusing laser light Increasing the mode-locking efficiency of a cw solid-state laser with an auxiliary cavity Regarding the paper "Stability of the eigenvalue solutions in a nonlinear directional coupler" by V. P. Torchigin et al. [Sov. J. Quantum Electron. 21, 1144–1147 (1991)] Correlation diagnostics of random spatially nonuniform optical fields
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