https://www.selleckchem.com/products/fino2.html
In this paper, a new configuration for an all-optical analog-to-digital converter based on nonlinear materials has been proposed. This structure is the combination of two main parts a quantization block followed by an optical coder. The refractive index of the nonlinear composite material varies with the intensity of the optical field. Sampling and quantizing have been performed at central wavelength $\lambda = 1550\;
m nm$λ=1550nm by three ring resonators that are filled by nonlinear material AlGaAs with linear refractive index of $n_1
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