As more demands are made on telecommunications and other applications of photonics such as
sensing, demand for the complexity and functionality of the interconnecting devices increases. Fibre Bragg
Gratings (FBG) for optical filters and switching are an inherent part of such systems. In this paper we report
the experimental study of gain of telecommunication Erbium Doped Fiber Amplifier (EDFA). For particular
pump power, the gain of Erbium Doped Fiber Amplifier for the wavelength range of 1529 nm - 1559 nm
was measured and found that the gain of the Erbium Doped Fiber Amplifier is very uneven exhibiting peaks
with different widths around 1532 nm and 1550 nm. On analysis of the results, filter of desired characteristic
is suggested which could support for flattening the gain of EDFA for fixed pump power, so that the EDFA
could be used for WDM applications. Three parameters which described the apodised grating profile were used to define the search space and the transfer matrix method is used to numerically evaluate the transmission spectrum.
In this paper we report the experimental study of gain of telecommunication Erbium Doped Fiber Amplifier (EDFA). For particular pump power, the gain of Erbium Doped Fiber Amplifier for the wavelength range of 1529 nm - 1559 nm was measured and found that the gain of the Erbium Doped Fiber Amplifier is very uneven exhibiting peaks with different widths around 1532 nm and 1550 nm. On analysis of the results, filters of desired characteristic is suggested which could support for flattening the gain of EDFA for fixed pump power, so that the EDFA could be used for WDM applications. We have flattened the gain spectrum of a commercial Erbium-doped fiber amplifier, obtaining a curve with approximately ± 1.5dB of ripple, from 1530.1 nm to 1556 nm, using five fiber bragg gratings as equalizing optical filter.
In this paper we report the experimental study of gain of telecommunication Erbium Doped Fiber Amplifier (EDFA). For particular pump power, the gain of Erbium Doped Fiber Amplifier for the wavelength range of 1529 nm - 1559 nm was measured and found that the gain of the Erbium Doped Fiber Amplifier is very uneven exhibiting peaks with different widths around 1535 nm and 1550 nm . On analysis of the results, filters of desired characteristic is suggested which could support for flattening the gain of EDFA for fixed pump power , so that the EDFA could be used for WDM applications .We have flattened the gain spectrum of a commercial Erbium-doped fiber amplifier, obtaining a curve with approximately ± 1.55dB of ripple, from 1530.1 nm to 1557 nm, using eight fiber bragg gratings as equalizing optical filter.
In the case of erbium doped fiber amplifier, noise and distortion characteristics degrade due to the characteristic of optical component. The resonant enhanced optical non- linearities and dispersion caused by erbium ions in a glass matrix influence the performance of Erbium. This paper reports on analysis, how the non linearities depends on fiber parameters thereby effecting the performance of erbium doped fiber amplifier. The analysis contains measurement of gain and noise figure of erbium doped fiber amplifier for different level of pump power and reflectivity, on a system for optimizing noise figure.
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