Gain Flattening and Noise Figure Analysis of EDFA WDM Configuration for L-band Optical Communication using Wavelength Selective Attenuator

Somnath Pain, Mousumi Biswas, Sambhunath Biswas

Abstract


In Erbium Doped Fiber Amplifier, there are basically two main techniques for gain flattening: one is use external wavelength filters to flattenedthe gain while the other one relies on modifying the amplifying fiber properties to flattened the gain spectrum. The paper presents the study of simulation of a gain flattened EDFA WDM network for L-band optical communication using Wavelength Selective Attenuator .The design provides a high gain of 34.63dB at 1593nm and gain flatness (P-P) 0.38dB by using wavelength selective attenuator in the entire L-band at room temperature. Noise figure of less than 11dB was found in the entire 37nm (1571nm-1608nm) region very promisingly. The variation also been studied for various values of fiber lengths and pump powers.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242