Multi-pumped tellurite-based Raman fiber amplifier based on Gaussian fitting of gain spectrum

Multi-pumped tellurite-based Raman fiber amplifier based on Gaussian fitting of gain spectrum The theoretical model and amplification principle of Raman fiber amplifier (RFA) are introduced. The gain curve and gain coefficient function which can accurately reflect the information of Raman gain spectrum (RGS) are obtained by the eighth-order Gaussian fitting of RGS of tellurite-based fiber. Combined with the technique of multi-pump, Raman power coupled wave differential equation is numerically solved by the fourth-order Runge–Kutta method. And Raman gain of each signal wavelength is obtained. According to the requirements of Dense Wavelength Division Multiplexing optical fiber transmission system for RFA, the designed tellurite-based Raman fiber amplifier (T-RFA) has improved the gain and bandwidth, and the smaller gain flatness is guaranteed. Finally, the average gain of the designed T-RFA obtained by Matlab numerical simulation is 25.518 dB, the maximum gain is 26.20 dB, the gain bandwidth is 56 nm and the gain flatness is 1.34 dB. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Optical and Quantum Electronics Springer Journals

Multi-pumped tellurite-based Raman fiber amplifier based on Gaussian fitting of gain spectrum

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Physics; Optics, Lasers, Photonics, Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks
ISSN
0306-8919
eISSN
1572-817X
D.O.I.
10.1007/s11082-018-1515-z
Publisher site
See Article on Publisher Site

Abstract

The theoretical model and amplification principle of Raman fiber amplifier (RFA) are introduced. The gain curve and gain coefficient function which can accurately reflect the information of Raman gain spectrum (RGS) are obtained by the eighth-order Gaussian fitting of RGS of tellurite-based fiber. Combined with the technique of multi-pump, Raman power coupled wave differential equation is numerically solved by the fourth-order Runge–Kutta method. And Raman gain of each signal wavelength is obtained. According to the requirements of Dense Wavelength Division Multiplexing optical fiber transmission system for RFA, the designed tellurite-based Raman fiber amplifier (T-RFA) has improved the gain and bandwidth, and the smaller gain flatness is guaranteed. Finally, the average gain of the designed T-RFA obtained by Matlab numerical simulation is 25.518 dB, the maximum gain is 26.20 dB, the gain bandwidth is 56 nm and the gain flatness is 1.34 dB.

Journal

Optical and Quantum ElectronicsSpringer Journals

Published: May 31, 2018

References

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