Suppression of Four Wave Mixing Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals in WDM System
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 62
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شناسه ملی سند علمی:
JR_JOPN-1-1_001
تاریخ نمایه سازی: 25 بهمن 1402
چکیده مقاله:
Data transmission in optical systems and increased transmission distance capacity benefit by using optical amplification wavelength division multiplexing (WDM) technology. The combination of four waves (FWM) is a non-linear effect in the wavelength division multiplex (WDM), when more than two wavelengths of light in a fiber launch will occur. FWM amount depends on the channel, the channel spacing and dispersion fiber, but is independent of the bit rate. A simple equation for the spectral line width is shown. Dispersion causes distortion of the transmitted signals and needs to be compensated to achieve a long-haul system. The four-wave mixing effect have been studied as one of the factors influencing by using OPTISYSTEM Software. In this paper, a new approach for suppressing the four-wave mixing (FWM) crosstalk by using the pairing combinations of differently linear-polarized optical signals is investigated. The simulation is conducted using an eight-channel system. The proposed technique is to suppress the FWM interaction using different input powers. It has been evaluated for single-mode fiber (SMF). FWM can be strongly reduced, when the polarization technique is conducted for SMF. We also compare our new method with a conventional method to demonstrate the effect of FWM as well. The comparison was conducted at an input power range of ۲ dBm. Decreasing the input power can decrease the FWM effects. In the absence of the polarization technique the FWM power was –۶۴ dBm at an input power of ۲ dBm. The FWM power decreased to less than -۸۲ dBm at a ۲ dBm input power. The system performance greatly has been improved.
کلیدواژه ها:
نویسندگان
Fatemeh Dehghani
Optoelectronic Research Center, Electronic Department of Shiraz University of Technology.
Farzin Emami
Optoelectronic Research Center, Electronic Department of Shiraz University of Technology
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