Simulation and experimental validation of gain saturation in Raman fiber amplifier

Author

Ali, M.H. ; Abdullah, F. ; Jamaludin, M.Z. ; Al-Mansoori, M.H. ; Ismail, A. ; Abass, A.K.

Author_Institution

Electron. & Commun. Eng. Dept., Univ. Tenaga Nasional, Kajang, Malaysia

fYear

2012

fDate

1-3 Oct. 2012

Firstpage

27

Lastpage

29

Abstract

In this paper, the effect of the large signal power on the Raman amplification is simulated utilizing OptiSystem. Two types of Raman amplification systems are simulated; average power Raman amplifier model (APA-RFA) and bidirectional-fiber Raman amplifier model (Bi-Fiber RFA). A comparison is made between these two kinds of amplifiers under the same input power condition. As a result the saturation mechanism due to the large input signal is recognized in bidirectional fiber Raman amplifier model. This saturation is due to the stimulated Brillouin scattering that occurred once the input signal power exceeds the stimulated Brillouin scattering threshold (SBS_TH). On the other hand, the average power Raman amplifier model exhibits constant Raman gain with the input signal power variation as the stimulated Brillouin scattering is not considered in this model. Finally, experimental results show significant agreement with the simulation results of the bidirectional fiber Raman amplifier model.

Keywords

optical fibre amplifiers; stimulated Brillouin scattering; OptiSystem; Raman amplification; Raman fiber amplifier; average power Raman amplifier model; bidirectional-fiber Raman amplifier model; constant Raman gain; gain saturation; input signal power variation; large signal power; saturation mechanism; stimulated Brillouin scattering threshold; Brillouin scattering; Gain; Optical fiber amplifiers; Raman scattering; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics (ICP), 2012 IEEE 3rd International Conference on

Conference_Location

Penang

Print_ISBN

978-1-4673-1461-9

Type

conf

DOI

10.1109/ICP.2012.6379850

Filename

6379850