An Analysis of 10 Gbits/s Optical Transmission System using Fiber Bragg Grating (FBG)

Simulative Investigation and Comparison of 8 x 40 Gbps WDM system Using Different Dispersion Compensation Techniques Based On DCF

“…The management of dispersion and non linearity's are main significance in WDM systems [3] The dominant aim of optical fiber communication is to expand the transmission distance [4]. The main factors that influence the WDM system are loss, dispersion , and non-linear effects like Self Phase Modulation (SPM) , cross phase modulation(XPM) and Four Wave Mixing (FWM) is observed at different data rates [5].So this dispersion and fiber non-linearity's effects at different data rates must be reduced by various dispersion compensation techniques like Fiber Bragg Grating (FBG) [6] Optical Phase Conjugation(OPC) [7] , Reverse Dispersion Fiber (RDF) [8] , Electronic Dispersion Compensation [9] , Dispersion Compensating Fiber (DCF) [10].In order to reduce the impairments due to fiber non-linearity's optical amplifiers such as Erbium Doped Fiber Amplifier (EDFA),Raman amplifier, SOA are also used [11].The use of DCF is effective way to minimize the complete dispersion in WDM network as they have higher negative dispersion coefficient and can be attached to the transmission fiber having positive dispersion coefficient so that the complete dispersion of the link becomes zero. [12].…”

Chromatic Dispersion Compensation Effect Performance Enhancements Using FBG and EDFA-Wavelength Division Multiplexing Optical Transmission System

“…Table 2 shows the comparison between the proposed model and the model without EDFA and FBG, respectively. On the other hand, our model using EDFA and FBG has been also compared with [5,6], as shown in Table 2; the proposed model presents many advantages in terms of gain, output power, and signal quality performance with lower noise figure. …”

“…EDFA is the most often used optical amplifier due to the low loss optical window of silica based fiber. It uses a doped optical fiber as a gain medium to amplify the optical signal [5]. The signal to be amplified and a pump laser are multiplexed into a doped fiber, then it is amplified through interaction with the doping ions.…”

“…FBG and EDFA have been implemented to optimize the quality of the received signal and to overcome chromatic dispersion and attenuation effects. Then, we compare the transmission system under study using the optimized setting parameters with a previous model proposed by other authors having chirped FBG as dispersion compensator [4][5][6][7] in terms of output power (dBm), noise figure (dB), gain (dB), -Factor, and eye diagrams at the received signal. In third section, we apply our model in four optical channels multiplexing with different wavelengths using an EDFA-WDM optical transmission system [9][10][11].…”

“…To face these problems, many solutions have recently been suggested. The use of FBG is one of the most efficient technologies used in research papers to overcome chromatic dispersion problem due to its low cost and its negligible effect [5,6]. Besides, there are several types of amplifiers such as SOA, EDFA, and Raman amplifier that have been introduced to encounter the attenuation effects.…”