Application of SPICE simulation to study WDM and SCM systems using EDFAs with chirping
Tóm tắt
The authors have proposed an equivalent electrical circuit model of erbium-doped fiber amplifiers (EDFAs), including the chirping effect for teaching or studying the distortions and performance of lightwave transmission systems. Through the aid of a SPICE circuit simulator, its validity is demonstrated by analyzing the cross modulations of an eight-channel wavelength division multiplexing system. The intermodulations in an amplitude modulation-subcarrier multiplexing (SCM) system are demonstrated. The channel-number dependence of the composite second-order distortion in a 42-channel SCM system is shown, and its applications to analyze other systems are also discussed.
Từ khóa
#Wavelength division multiplexing #Communication engineering education #SPICE #Optical fiber communication #Intermodulation distortion #Optical modulation #Amplitude modulationTài liệu tham khảo
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