Abstract
With the evolvement ofhigh speed and long distance data communication systems, conventional band erbium-doped fiber amplifiers (C-EDFAs) are getting more attention in recent times. Major advantage of the C-band EDFA is that it provides the user to realize a system with wide bandwidth of 40 nm. But, from the reported works, it is evident that for Gain enhancement in C-band using EDFA is reported with the use of multiple stages, multiple pumps, Gain flattening filters etc. However, these techniques suffered from high cost, complex techniques and low performance.Here enhancement process was done through the narrowband Fiber Bragg Gratings (FBG) or fiber reflectors mirrors. In this work, a conventional band erbium doped fiber amplifier is proposed with high gain and less noise figure by incorporating the two fiber bragg gratings (FBGs) for amplified spontaneous noise reinjection. Maximum ASE is emerged at 1565 nmfor the at -55 dBm carrier powers. Maximum gain is found out to be 48.16 dB with noise figure of 5.29 dBm.
Highlights
Information uprising implies that networks based on internet require high bandwidth for information exchange between multiple points
In the beginning of the development of fiber optical systems, the amplitude degradation was very towering and typically deteriorate signal with the loss of up to 1000 dB/km as well as not incorporated in the industry based transmission systems [2].Later on, in the year 1970, the researchers at Corning Glass Works were flourishing in realizing anoptical fiber with attenuation 20 dB/km whichwas the breakthrough for this technology and in addition, made fiber optic very reliable to use.Further, as the work on enhancing the potential of fiber optic increased, the amplitude degrading value comes down to 0.2 dB/km and are available
Optical fiber cables provide the ultimate solution to the overall cost of the systems because they are cheaper in the cost as compared to co-axial and copper wires.Optical fibers are simple to install in the network for information sharing.Fiber optic cable networks can be upgraded without any complex efforts.In fiber optic based communication systems, there is an advantage to realize Bidirectional transmission
Summary
Information uprising implies that networks based on internet require high bandwidth for information exchange between multiple points. Fiber optic reliant systems are the only communication medium that providing such wide-bandwidth by means of offering very low signal degradations lossesin the transmission links [1]. By the incorporation of the optoelectronic repeater, the attenuation or losses emerged due to fiber optic length can be reduced [3]. Working of these devices is simple that optical signal is first of all converted into electric signal and followed by amplification it is regenerated by sender/ transmitter. The optical amplifiers are generally incorporated in the optical fiber system for amplification of entire array of wavelength division multiplexing system channels at the same time and this is termed as optical in-line amplification scheme [4]
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