The effect of the optical fiber design on reducing the nonlinear characteristics of the optical fiber

Abstract

Fiber Bragg Grating FBG Works as a filter within a specific range to counteract the light whose wavelength is within the filter range and allows the light whose wavelength is outside the range of the filter to pass through the carrier light-medium. In communications (fiber-optic) the FBG is used to separate the optical signals. In this paper, the nonlinear optical properties study for optical transmission that consists of an optical transmitter that is transmitting the signal to two different fiber design first is single-mode fiber and second is Coarse Wavelength division multiplexing (CWDM) fiber. Then we enter the Bragg Grating on these two fiber and studies the effect of the Bragg on them. The nonlinear optical characteristic (Q factor and bit error rate BER) is calculated for different fiber length (Km) and input power (dBm) applied on these two fibers and found the best fiber type that has a high Q factor and zero BER. By using optiwave software and matlab (R2015) software program to measure the quality factor, eye diagram and BER of the received signal at the receiver, Results are obtained and installed with graphs and tables.

Nonlinear Control Method of Superconducting Energy Storage considering Voltage Imbalance in Distribution Network

“…Combined with the designed controller, a switching synovial controller is designed by the backstepping method. According to the scalar nonlinear characteristics, a synovial surface is designed [16], and a nonlinear controller algorithm is designed to make the superconducting energy storage device meet the actual accessibility conditions of the designed synovial surface, complete the design of switching synovial controller, and realize the synovial control of the device. e designed synovial surface is as follows:…”