Determination method of optimum step in digital rear projection algorithm of optical fiber transmission loss compensation
A technology of optical fiber transmission and determination method, which is applied in the direction of optical fiber transmission, transmission system, electromagnetic wave transmission system, etc., and can solve the problem that the nonlinear effect compensation effect is not optimal
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[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0029] Such as figure 1 As shown, in the present invention, the method for determining the optimal step size in the digital rear projection algorithm of optical fiber transmission loss compensation specifically includes the following steps:
[0030] S101. According to the nonlinear Schrödinger equation of optical fiber transmission, since the light field envelope transmitted by light in the optical fiber is an independent variable A, the coordinate system is composed of time t and the transmission distance z of light in the optical fiber. Therefore, make t a The transformation of , where T is the new amount of time obtained after the transformation of t, β 1 is the first-order dispersion of the fiber, v g is the group velocity of light propagating in the optical fiber, that is to say, it introduces a change amount of the group velocity as ...
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