Flatness Improvement of FRA with Multi-Wavelength Pump

Abstract:

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.

• Periodical: Advanced Materials Research (Volume 981)
• Pages: 141-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.981.141
• Online since: July 2014
• Authors: Yu Ma, Yan Chao Li, Chang Xing Liu, Xiang Yu Meng, Jiu Ru Yang*
• Keywords: Fiber Raman Amplifier, Gain-Flatness, Multi-Wavelength Pump, Simulation

References

[1] K. Rottwitt, H. Kidorf. A 92 nm Bandwidth Raman Amplifier[C]. IEEE/OSA OFC, Vol. 1 (1997), PD 6.

[2] H. Masuda, S. Kawai, K. Suzuki, et al. Wide-band and Low Noise Optical Amplification Using Distributed Raman Amplifiers and Erbium-Doped Fiber Amplifiers[C]. ECOC, Vol. 1(1998), pp.51-52.

DOI: 10.1109/ecoc.1998.732431

[3] A. C. Rasmussen, J. T. Fjeled, J Bennike, et al. DWDM 40G Transmission over Trans-Pacific Distance (10000km) Using CSRZ-DPSK, Enhanced FEC, and A Raman-Amplified 100-km Ultra-wave Fiber Spans[J]. Journal of Lightwave Technol., Vol. 22(2004).

DOI: 10.1109/jlt.2004.824187

[4] P. Xiao, Zeng Q, Huang J, et al. A New Optimal Algorithm for Multi-pump Sources of Distributed Fiber Raman Amplifier[J]. IEEE Photon. Technol. Lett., Vol. 15(2003), pp.206-208.

DOI: 10.1109/lpt.2002.806086

[5] S. Cui, J. Liu, X. Ma. A Novel Efficient Optimal Design Method for Gain-flattened Multi-Wavelength Pumped Fiber Raman Amplifier[J]. IEEE Photon. Technol. Lett., Vol. 16(2004), pp.2451-2453.

DOI: 10.1109/lpt.2004.835637

[6] S. Namiki, Y. Emori. Ultra Broad-band Raman Amplifier Pumped and Gain-equalized by Wavelength Division-multiplexed High-power Laser Diodes[J]. IEEE J on Selected Topics in Quantum Electronics, Vol. 7(2001), pp.3-16.

DOI: 10.1109/2944.924003

[7] J. Zhou, J. Chen. Optimal Design of Raman Amplifier Pumped by Multi-wavelength Low Power Dioxides[J]. Journal of Optoelectronics Laser, Vol. 16(2005), pp.286-288, 293.

[8] X. An. Analysis and Design of Multi-pumped Broadband Fiber Raman Amplifiers[D]. Beijing: Beijing Jiaotong University, 2011, pp.44-52.

[9] L. Liu, Y. Ma, J. Yang. Performance Optimization based Spectrum Analysis on OFRA and EDFA Devices[J]. TELKOMNIKA, Vol. 11 (2013), pp.3742-3749.

[10] Y. Ma, Y. C. Li, C. Liu, J. R. Yang. A Flat Fiber Raman Amplifier by Optimizing a Single-Wavelength Laser Diode [C], ICEEIS, (2014), accepted.

DOI: 10.4028/www.scientific.net/amr.981.409

[11] B. Wu. The Computer Simulation and Research of Optical Fiber Raman Amplifier[D]. Shandong: Shandong University, 2005, pp.58-60.