Analysis of steady state operation of ultra-wide band Er, Tm co-doped silica fiber amplifier

ZHENG Guang-wei; ZHAO Shang-hong; LI Yu-jiang; XU Jie; ZHANG Hu; FAN Guo-li; YANG Qing-hua

The operation principal of Er3+,Tm3+ co-doped silica fiber amplifier is presented when pumped at 980nm.Depending on the principal,the mathematical model of energy transfer process between Er3+ and Tm3+ ions is established.Based on the rate and propagation equations,numerical simulation of its steady state operation properties is performed and the simulation of output power spectrum of several channel signals as a function of different factors,(such as different fiber length,different pump power,and different Tm3+ ions concentration) is also given.The simulation results show that the amplifying bandwidth of this fiber is up to 90nm(twice larger than the traditional Er-doped fiber amplifier) and the average gain is up to 10dB when the pump power is just 400mW.Its characteristic of ultra-wide band amplifying is useful for DWDM in the near future.

Corresponding author: ZHAO Shang-hong, zhaoshangh@yahoo.com.cn;

1. Institute of Telecommunication Engineering, Air Force Engineering University, Xi'an 710077, China

Received Date: 2005-03-13

Accepted Date: 2005-04-20

Available Online: 2006-03-25

Abstract: The operation principal of Er3+,Tm3+ co-doped silica fiber amplifier is presented when pumped at 980nm.Depending on the principal,the mathematical model of energy transfer process between Er3+ and Tm3+ ions is established.Based on the rate and propagation equations,numerical simulation of its steady state operation properties is performed and the simulation of output power spectrum of several channel signals as a function of different factors,(such as different fiber length,different pump power,and different Tm3+ ions concentration) is also given.The simulation results show that the amplifying bandwidth of this fiber is up to 90nm(twice larger than the traditional Er-doped fiber amplifier) and the average gain is up to 10dB when the pump power is just 400mW.Its characteristic of ultra-wide band amplifying is useful for DWDM in the near future.

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Reference (9)

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Analysis of steady state operation of ultra-wide band Er, Tm co-doped silica fiber amplifier

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References

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