A study of green wavelength-division multiplexed optical communication systems using cascaded fiber bragg grating |
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Affiliation: | 1. Department of Electrical Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21432, Saudi Arabia;1. School of Information and Electric Engineering, Hebei University of Engineering, Handan 056038, China;2. Optical Zeitgeist Laboratory, INRS, Montreal, QC H5A1K6, Canada;1. Department of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh;2. School of Computer and Communication Engineering, University Malaysia Perlis (UniMAP), Pauh Putra Campus, 02600 Arau, Perlis, Malaysia |
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Abstract: | This paper studies the performance analysis of wavelength-division multiplexed optical communication systems (WDM). First, flat-gain erbium doped fiber amplifiers (EDFAs) are seriously needed to obtain proper and equal amplification of all channels. Such amplifiers can be designed by intrinsically modifying the host material or extrinsically using proper filters. In this research, we benefit from both the intrinsic and extrinsic methods to achieve sharp flat EDFA output gain using cascaded fiber Bragg gratings (FBGs). Second, the performance of our technique has been evaluated through calculating the bit error rate (BER) and signal-to-noise ratio (SNR) of a WDM system embedded with the reported EDFA flattening system. The parametric simulations of the FWHM of FBGs, SNR, optical power and the transmission distance have shown a noticeable improved performance. Sending data via an optical WDM system will be proven from comprehensive simulations to achieve high quality signal transmission spectrums, increased transmission distances and low power consumption. By extension, the reported design using cascaded FBGs can also be generalized to equalize the gain of any arbitrary profile. |
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Keywords: | Fiber Bragg gratings Gain flattening Optical amplifiers |
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