United States Patent ( 19 ) Payne et al . 54 ERBIUM-DOPED FIBRE AMPLIFIER WITH SHAPEID SPECTRAL GAIN 75 Inventors (original) (raw)

2017

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Detailed design analysis of erbium-doped fiber amplifiers

Photonics Technology …, 1991

INTRODUCTION HE erbium-doped fiber amplifier has much potential as a T high-gain optical amplifier in optical communication sys- ... MODEL The model for the EDFA, used in the analysis, assumes that the Er3+-ions acts as a 3-level laser system when pump-ing at ...

Experimental validation of a black box model for L-band erbium doped fiber amplifiers

We experimentally validate a black box model for long-wavelength erbium doped fiber amplifiers. The agreement between the model and the experiments is closer than in the case of conventionalwavelength erbium amplifiers. ... Several models have been proposed to predict gain spectral changes of Erbium Doped Fiber Amplifiers (EDFA) under different saturation conditions [1-3]. Most of these models rely on accurate values of absorption and emission crossection spectra or, equivalently, the intrinsic saturation power at all wavelengths, the geometry and ...

Erbium Doped Fiber Amplifier Performance using Different Host Materials in the Band 1450-1650 Nm: A Comparative Study

IIUM Engineering Journal, 1970

A numerical investigation of the performance characteristics of erbium doped fiber amplifier using different host materials is presented. The emission and absorption curves of each of these hosts are fitted to Guassian fitting parameters. A software program is then implemented to calculate the gain coefficient, gain spectrum and the equivalent input noise factors in forward and reverse directions. The hosts under consideration are: almino-germanosilicate, bismuth, LiNbO3, tellurite, sodium niobium phosphate, oxyfluoride silicate, Al2O3 and fluoride phosphate glasses. The corresponding gain covers the 1450-1650 nm wavelength range.

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