High-order few-mode-fiber Raman amplifier for low noise mode-division-multiplexed optical communication

2017 ◽  
Author(s):  
Jiangbing Du ◽  
Jiaxiong Li ◽  
Lin Ma ◽  
Zuyuan He
Keyword(s):  
Optical Communication ◽  
Low Noise ◽  
High Order ◽  
Raman Amplifier ◽  
Fiber Raman Amplifier

scholarly journals Optimization noise figure of fiber Raman amplifier based on bat algorithm in optical communication network

2018 ◽  
Vol 7 (2) ◽  
pp. 874 ◽  
Author(s):  
Hamid Ali Abed Al-Asadi ◽  
Majida Ali Al-Asadi ◽  
Nada Ali Noori
Keyword(s):  
Communication Networks ◽  
Optical Communication ◽  
Noise Figure ◽  
Single Mode ◽  
Bat Algorithm ◽  
Single Mode Fiber ◽  
Laser Wavelength ◽  
Low Noise ◽  
Raman Amplifier ◽  
Fiber Raman Amplifier

Designing Raman amplifier with high On-Off again and low noise figure is required in in optical communication networks, due to wide and tunable amplification and low nonlinearity. This paper proposes a new configuration design to the single mode fiber Raman amplifier using a multi-objective bat algorithm. The main aim of the proposed method is to preserve the values of noise figure and ripple of the amplifier as low as possible while keeping the values of laser wavelength and the amplifier powers are high. The simulation results show that increasing the number of iterations is required, which would result in a flat gain spectrum with a considerable enhancement in the noise figure and minimal gain ripple that reaches to less than 0.18 DB.  

High Gain, Low Noise, Spectral-Gain-Controlled, Broadband Lumped Fiber Raman Amplifier

2020 ◽  
pp. 1-1
Author(s):  
Sijing Liang ◽  
Saurabh Jain ◽  
Lin Xu ◽  
Kyle R. H. Bottrill ◽  
Natsupa Taengnoi ◽  
...  
Keyword(s):  
High Gain ◽  
Low Noise ◽  
Raman Amplifier ◽  
Fiber Raman Amplifier

Flatness Improvement of FRA with Multi-Wavelength Pump

2014 ◽  
Vol 981 ◽  
pp. 141-145
Author(s):  
Yu Ma ◽  
Yan Chao Li ◽  
Chang Xing Liu ◽  
Xiang Yu Meng ◽  
Jiu Ru Yang
Keyword(s):  
Wavelength Division Multiplexing ◽  
Low Noise ◽  
Gain Spectrum ◽  
Silica Fiber ◽  
Dense Wavelength Division Multiplexing ◽  
Wavelength Division ◽  
Raman Amplifier ◽  
Fiber Raman Amplifier ◽  
Pump Source ◽  
Multi Wavelength

A fiber Raman amplifier (FRA) based on the properties of silica fiber can not only get a wideband gain spectrum by using multiple pumps, but also has the nature of low noise and cost. In the study of FRA, gain-flatness is one of the most key and hot issues. In this paper, we focus on the gain flatness of fiber Raman amplifier by multi-pump, and various parameters in term if power and number of pump source are analyzed comprehensively. According to the numerical results obtained, the optimized within power and number of the pump source are determined. And we controlled the gain-flatness of FRA within ±1 dB from 1512nm to 1566nm in a dense wavelength division multiplexing system with 67 channels.

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