Abstract :
As a multiplexing technique commonly used in optical fiber communication
networks, dense wavelength division multiplexing (DWDM) can transmit signals with
different wavelengths in the same channel. The small channel spacing makes it suitable for
use on long distance transmissions, and can streamline channel usage. Behind its
advantages, DWDM has one of the weaknesses known as nonlinear effects, which is caused
by the nonlinearity of the fiber optic medium. One of the types of nonlinear effects is four
wave mixing (FWM). In this study a study was conducted to minimize nonlinear effects
using 3 schemes, namely MZ Modulator, PM-AM, PM-AM-MZ Modulator. The channel
spacing used is 50 GHz with a 10 Gbps bitrate. Of all the variations of the scenario in the
MZ Modulator and PM-AM scheme, it results in Q-Factor and BER values that do not
match the standards of 6 and 10
respectively. On the other hand, PM-AM-MZ Modulator
schemes produce Q-Factor and BER values that conform to the standard.
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Keywords: DWDM, FWM, MZ Modulator, PM-AM, PM-AM-MZ Modulator, Q-Factor,
dan BER.