Analysis of Four Wave Mixing Effects in 16 ×10 Gb/S WDM Optical Communication System

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Poonam Beniwal ◽  
Deepak Kedia
Keyword(s):  
Optical Communication ◽  
Bit Error Rate ◽  
Communication System ◽  
Effective Area ◽  
Four Wave Mixing ◽  
Limiting Factors ◽  
Wave Mixing ◽  
Q Factor ◽  
Optical Communication System ◽  
Fiber Nonlinearities

AbstractThe fiber nonlinearities are one of the main performance limiting factors in any optical communication system. There are several parameters that effectively contribute in mitigation of these fiber nonlinearities such as fiber dispersion, effective area of fiber core, etc. Here, we have investigated the four wave mixing (FWM) nonlinear impairments in 16-channel WDM system. The FWM crosstalk becomes very critical to handle for long haul transmission systems at high power levels. Here, 16 channels WDM is being implemented and its performance is evaluated in terms of bit error rate (BER), Q factor, etc. for distance transmission upto 500 km.

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.

Effect of OPC on Fiber Nonlinearities for Dense Soliton Optical Communication Medium

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Ghanendra Kumar ◽  
Chakresh Kumar
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Review Paper ◽  
Four Wave Mixing ◽  
Destructive Interference ◽  
Wave Mixing ◽  
Dense Wavelength Division Multiplexing ◽  
Communication Medium ◽  
Fiber Nonlinearities ◽  
Wavelength Division

AbstractThis review paper scrutinizes the staging of dense wavelength division multiplexing soliton system in return to zero and non-return to zero format. In-line optical phase conjugator (OPC) is used to depreciate the power of four wave mixing (FWM). Destructive interference between both the halves of in-line OPC plummets the FWM power sturdily. This paper concludes with the indication that return-to-zero with OPC gives out better performance with FWM suppression.

Performance Analysis of Coherent Optical Communication System for M-QAM Higher Modulation Level

2016 ◽  
Vol 37 (4) ◽  
Author(s):  
Amrinder Kaur ◽  
Sanjeev Dewra
Keyword(s):  
Optical Communication ◽  
Communication System ◽  
Pulse Generator ◽  
Q Factor ◽  
Optical Communication System ◽  
Coherent Optical Communication ◽  
Eye Opening ◽  
Hyperbolic Secant Pulse ◽  
Sequence Generator ◽  
Modulation Level

AbstractIn this paper, performance of QAM sequence generator in coherent optical communication system is investigated. Results are obtained for different square constellation types such as 4-QAM, 16-QAM, 64-QAM and 256-QAM using Hyperbolic-secant pulse generator. For the distance of 120 km and bit rate of 10 Gbps, it is investigated that 4-QAM provides maximum Q factor of 33.93 and minimum BER of 6e-253, whereas 16-QAM, 64-QAM & 256-QAM provides Q factor of 31.47, 22.85 & 8 and BER of 5e-218, 3e-116 & 2e-16, respectively. Decrement in Quality factor and increase in BER are observed with increment in the M-value of QAM. It is further observed that Eye opening decreases with increment in levels of QAM.

scholarly journals Impact of Optical Booster to Enhance the Gain Bandwidth for Dense Optical Communication System

2019 ◽  
Vol 7 (1) ◽  
pp. 42-46
Author(s):  
Ghanendra Kumar ◽  
◽  
Chakresh Kumar ◽  
Keyword(s):  
Optical Communication ◽  
Bit Error Rate ◽  
Error Rate ◽  
Communication System ◽  
Optical Communication System ◽  
Gain Bandwidth ◽  
Non Linear ◽  
Flat Gain ◽  
Fiber Components

This paper explains how the combination of RAMAN and PARA-METRIC amplifier using non-linear fiber components increases the gain bandwidth. Two kinds of configuration of amplifier are demonstrated with gain associated and bit error rate is seen. 15 db gain is measured and flat gain of 5db is measured.

scholarly journals Performance Analysis of Satellite-to-Ground Coherent Optical Communication System with Aperture Averaging

2018 ◽  
Vol 8 (12) ◽  
pp. 2496 ◽  
Author(s):  
Hongwei Li ◽  
Yongmei Huang ◽  
Qiang Wang ◽  
Dong He ◽  
Zhenming Peng ◽  
...  
Keyword(s):  
Outage Probability ◽  
Optical Communication ◽  
Bit Error Rate ◽  
Error Rate ◽  
Communication System ◽  
Coherent Detection ◽  
Atmospheric Conditions ◽  
Optical Communication System ◽  
Aperture Averaging ◽  
Atmosphere Turbulence

The satellite-to-ground optical communication system suffers from atmosphere turbulence severely. It is well-known that the coherent detection can increase the receiver sensitivity and performing aperture averaging can reduce the scintillation caused by the atmosphere turbulence. In this paper, the bit error rate, the outage probability and the average capacity of a coherent satellite-to-ground optical communication downlink with aperture averaging are analyzed. The Log-normal atmosphere turbulence model and BPSK (Binary Phase Shift Keying) modulation is employed. The analyzing focuses on the improvement of aperture averaging with different atmospheric conditions and zenith angles of the satellite. The bit error rate performance based on measuring data is given too. The results demonstrate the bit error rate and the outage probability can be reduced and the average capacity can be improved by aperture averaging efficiently. When the turbulence is stronger and the zenith angle is larger, the effect of aperture averaging is more obvious. The aperture averaging effect on BER (Bit Error Rate) is better than the effect on average capacity.

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