scholarly journals Performance Investigation of Different Dispersion Compensation Methods in Optical Fiber Communication

2020 ◽  
pp. 36-44 ◽  
Author(s):  
Md. Bipul Hossain ◽  
Apurba Adhikary ◽  
Tanvir Zaman Khan
Keyword(s):  
Optical Fiber ◽  
Single Channel ◽  
Dispersion Compensation ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Signal Degradation ◽  
Dispersion Compensation Fiber ◽  
Compensation Methods ◽  
System Length ◽  
Quality Factor Q

In optical fiber Communication system dispersion compensation has become one of the major topics of importance and research nowadays. This is because any presence of dispersion might leads to pulse spreading which might cause inters symbolic interference (ISI) and which leads to signal degradation. In this paper six different model are considered for dispersion compensation. Dispersion compensation fiber (DCF) is used to design first three models by using its three different configurations of pre-compensation, post-compensation, symmetrical compensation and Fiber Bragg Gratings (FBG), uniform FBG, IDCFBG are used for designing rest of three dispersion compensation models. Single channel optical system length of 100 km with data rate of 2.5 Gbps and 10 Gbps is used to design each model and is simulated by using optisystem software package. All the designs are compared with respect to the quality factor (Q-factor) and bit error rate (BER). With the outcome of the simulations results it is seen that post–compensation DCF model is the promising approach.

scholarly journals ANALISIS KOMPENSASI DISPERSI MENGGUNAKAN PENGUAT RAMAN PADA JARINGAN WDM (WAVELENGTH DIVISION MULTIPLEXING) DALAM KOMUNIKASI SERAT OPTIK

2018 ◽  
Vol 15 (2) ◽  
pp. 88
Author(s):  
Roby Ikhsan ◽  
Romi Fadli Syahputra ◽  
Saktioto Saktioto
Keyword(s):  
Optical Fiber ◽  
Wavelength Division Multiplexing ◽  
Data Transmission ◽  
Dispersion Compensation ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Wavelength Division ◽  
Fiber Raman Amplifier ◽  
Wdm Network ◽  
Transmission Speed

The discovery of optical fiber cause widespread revolution of communication system. Optical fiber communication has excellency on data transmission speed, security, flexibility, and broadly bandwidth. The applying of WDM network can broaden the bandwidth so that the transmission performance becomes more splendid. Although some factors such as dispersion, attenuation, and scattering can hinder the performance of fiber optic on sending data. Moreover dispersion can wreck data and spread pulse as it travels alongs fiber so that causing interference. There is some methods  of dispersion compensation. In this paper, Fiber Raman Amplifier is used on WDM network to strengthen signal which is sent to detector. This research utilize simulation approachment  with various bandwidth and length fiber. The results show lowest BER value and highest Q-factor at bandwidth frequency of 30 GHz and fiber length of 20 km.

scholarly journals Comparison of dispersion compensation with Fiber Braggs Grating at Transmitter and Receiver end of a single channel optical communication system

2013 ◽  
Vol 8 (2) ◽  
pp. 837-844
Author(s):  
Er. Abhishek Sharma ◽  
Er. Sukhbir Singh ◽  
Er. Rajeev Thakur ◽  
Er. Bhubneshwar Sharma
Keyword(s):  
Optical Fibers ◽  
Optical Communication ◽  
Communication System ◽  
Single Channel ◽  
Dispersion Compensation ◽  
Optical Fiber Communication ◽  
Light Signal ◽  
Receiver Side ◽  
Optical Communication System ◽  
Fiber Communication

Optical fibers are used to transmit the light signal in optical communication system. When the light pulses propagates down the fiber, the pulses spreading takes place, and this phenomenon is called Pulse Dispersion. Dispersion is the main factor which affects the performance of fiber in optical fiber communication system. Dispersion can be compensated by many ways. Dispersion compensation by FBG (fiber bragg grating) is studied in this paper. Dispersion compensation by FBG along EDFA plays a very important role in dispersion compensation. When FBG is used after EDFA  at transmitter side (before fiber)in single channel optical communication system then it gives better performance (less BER) as compare to when FBG used after EDFA at receiver end (after fiber). In this paper performance of system is investigated by using FBG after EDFA at both transmitter side (before the fiber) and receiver side (after the fiber). For 50km BER reduces from 1.28559e-111 (FBG after EDFA at receiver side) to 9.57499e-201 (FBG after EDFA at transmitter side).

Dispersion Compensation in Optical Fiber using Fiber Grating

2020 ◽  
Vol 07 (01) ◽  
pp. 16-22
Author(s):  
Bajarang Prasad Mishra ◽  
Keyword(s):  
Optical Fiber ◽  
Dispersion Compensation ◽  
Optical Fiber Communication ◽  
Fiber Grating ◽  
Security Risk ◽  
Fiber Communication ◽  
Eye Diagram ◽  
Optical Signals ◽  
Optical Transmitter ◽  
High Bandwidth

Optical Fiber Communication System is highly in demand because of several advantages namely Extremely High Bandwidth, Longer Distance, Low security Risk, Small Size etc. This system basically consists of Optical Transmitter, appropriate channel and Optical Receiver. Optical Fiber is generally used for the propagation of optical signals and in this fiber, Dispersion arises which acts as the main hindrance in Optical Fiber Communication. Dispersion is nothing but the time broadening of pulses because of the inherit property of the Silica Fiber that refractive index of the material depends upon the wavelength used. In this paper, Compensation of Dispersion is done using the FBG(Fiber Bragg Grating. FBG is a type of filter which passes few wavelengths and reflects rest of them. Stimulation is done on software named OPTISYSTEM 15. Simulation results are analyzed through Eye Diagram which gave us the values of MIN.BER and Q-Factor.

Optical Fiber Dispersion Compensation Based on Optic System

2014 ◽  
Vol 635-637 ◽  
pp. 1090-1093
Author(s):  
Wei Song ◽  
Shi Quan Qiao ◽  
Xiao Lin Zhang ◽  
Shu Hai Wang ◽  
Shu Wang Chen
Keyword(s):  
Optical Fiber ◽  
Communication System ◽  
Output Signal ◽  
Dispersion Compensation ◽  
Optical Fiber Communication ◽  
System Structure ◽  
Optic System ◽  
Fiber Communication ◽  
Fiber Dispersion ◽  
Optical Fiber Communication System

In the optical fiber communication system of high-speed and large capacity, the dispersion is one of the main technical indicators. The dispersion causes the light pulse broadening, so it leads to the distortion of signal transmission and BER (bit error rate). The main research is the single-mode optical fiber dispersion compensation. The design and performance of system structure on the dispersion compensation fiber communication system is accomplished by using of the optic system optical fiber communication system simulation. Through the analysis of system structure and the research of the performance of the key components of the system, the output signal waveform is simulated and the influence of the output signal waveform by the system structure and key components performance of the receiving end is compared. The design can reduce the system dispersion.

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