Error-rate degradation due to fiber four-wave mixing in four-channel FSK direct-detection transmission

1991 ◽  
Vol 3 (1) ◽  
pp. 77-79 ◽  
Author(s):  
K. Inoue ◽  
H. Toba
Keyword(s):  
Error Rate ◽  
Direct Detection ◽  
Four Wave Mixing ◽  
Wave Mixing

Suppress the FWM by Increasing Channel Spacing and Chromatic Dispersion of Fiber in WDM System

2015 ◽  
Vol 36 (3) ◽  
Author(s):  
Veerpal Kaur ◽  
Kamaljit Singh Bhatia
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Chromatic Dispersion ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Q Factor ◽  
Output Spectrum ◽  
Channel Spacing ◽  
Maximum Value

AbstractIn this paper, we investigate the effect of channel spacing and chromatic dispersion on four wave mixing in WDM system. Dominating effect of four wave mixing is minimizing at maximum value of dispersion and channel spacing. Power of FWM, Q-factor, bit error rate and output spectrum is used to measure the performance of system.

scholarly journals Modified Unequally Spaced Channels Wavelength Division Multiplexing System

2008 ◽  
pp. 68-78
Keyword(s):  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Four Wave Mixing ◽  
The Other ◽  
Wave Mixing ◽  
Wavelength Division ◽  
Unequally Spaced ◽  
Frequency Spacing ◽  
Active Channels

The channels contributed in creating new pulse during the four-wave mixing (FWM) process are a subject of two features: the first is the fact that all channels are not working with probability %100 , but with p probability. Second, the bits transmitted are not all "1". Therefore, the equation of power generated using these features should be corrected. On the other hand, the use of equally spaced channels wavelength divisionmultiplexing (ESC WDM) system cause an increase in the number of new components generated that interfere with the active channels and increase the bit error rate. In order to reduce these interferences, we have provided an unequally spaced channels wavelength division-multiplexing (USC WDM) system composed of several sets. Each set consists of only four channels, which locations have been selected to cause no interferences between them. Neighboring sets are separated by a frequency spacing which should be large enough to reduce the interferences between the sets, andsmall enough to increase the total number of channels of the system.

scholarly journals Reduction of Four-Wave Mixing in DWDM System using Electro-Optic Phase Modulator

2018 ◽  
Vol 8 (4) ◽  
pp. 2384
Author(s):  
Naif Alsowaidi ◽  
Tawfig Eltaif ◽  
Mohd Ridzuan Mokhtar ◽  
Belal A. Hamida
Keyword(s):  
Bit Error Rate ◽  
Direct Detection ◽  
Four Wave Mixing ◽  
Error Rates ◽  
Phase Modulator ◽  
Wave Mixing ◽  
Electro Optic ◽  
Phase Deviation ◽  
Simulation Results ◽  
Dwdm System

<span>In this paper, electro-optic phase modulator (EOPM) is used to reduce the effect of four-wave mixing (FWM), which is placed after 64 DWDM-channels multiplexer. It was found that the FWM is very sensitive to the phase deviation of the EOPM, and it can be reduced by introducing a phase shift between pulses. The simulation results confirmed the ability of the EOPM in improving the system performanceas indicated by the bit error rates. In term of comparison, the system of 64 channels based intensity modulated/ direct detection (IM/DD) transmission achieved bit error rate of 10<sup>-26</sup> over 30 km and 70km without and with EOPM, respectively.</span>

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