Numerical simulation and analysis of C+L bandwidth fiber Raman amplifier using multi-wavelength pumps

ZHOU Wei-jun; LI Ze-ren; WANG Rong-bo

doi:10.3969/j.issn.1001-3806.2011.06.015

In order to design a broadband distributed fiber Raman amplifier, after simulating the forward pumping mode Raman coupling equations, proper wavelengths were obtained, and it was found that the bandwidth was 80nm at 1530nm～1610nm for a distributed Raman fiber amplifier. Under the condition of uniform pump, after amplifying the signals in 80 signal channels, the signal and pump power along the fiber, the output power and gain of each channel were analyzed. The pumping power was adjusted to improve signal and gain flatness. After transmitting in a G655 single mode fiber in 50km long, the average gain was about 10dB, and the gain flatness was 1dB. This result plays important instructive role in the design of broadband distributed fiber Raman amplifiers.

Numerical simulation and analysis of C+L bandwidth fiber Raman amplifier using multi-wavelength pumps

1. Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 2011-03-07

Accepted Date: 2011-06-29

Available Online: 2011-11-25

Abstract: In order to design a broadband distributed fiber Raman amplifier, after simulating the forward pumping mode Raman coupling equations, proper wavelengths were obtained, and it was found that the bandwidth was 80nm at 1530nm～1610nm for a distributed Raman fiber amplifier. Under the condition of uniform pump, after amplifying the signals in 80 signal channels, the signal and pump power along the fiber, the output power and gain of each channel were analyzed. The pumping power was adjusted to improve signal and gain flatness. After transmitting in a G655 single mode fiber in 50km long, the average gain was about 10dB, and the gain flatness was 1dB. This result plays important instructive role in the design of broadband distributed fiber Raman amplifiers.

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Reference (8)

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Numerical simulation and analysis of C+L bandwidth fiber Raman amplifier using multi-wavelength pumps

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