Journal of the European Optical Society - Rapid publications, Vol 9 (2014)

56.6 dB high gain L-band EDFA utilizing short-length highly-doped erbium rare-earth material

M. H. Al-Mansoori, W. S. Al-Ghaithi


In this paper, we experimentally investigate the performance of an efficient high gain L-band erbium-doped fiber (EDF) amplifier structure utilizing short-length highly-doped erbium rare-earth material with a single pump source. The amplifier gain and noise figure variation for different amplifier structures have been investigated. A filter is used to reduce the self-saturation effect and suppress the C-band amplified spontaneous emission (ASE) noise. The amplifier achieves a signal gain of 56.6 dB with a low noise figure of 4.8 dB at -50 dBm input signal power using only 8 m of EDF length. The amplifier gain shows significant improvement of 6 dB with C/L band coupler and 13 dB with tunable-band pass filter compared to amplifier structure without ASE suppression.

© The Authors. All rights reserved. [DOI: 10.2971/jeos.2014.14028]

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E. Desurvire, J. R. Simpson, and P. C. Becker, ”High-gain Erbium doped traveling-wave fiber amplifier,” Opt. Lett. 12, 888–890 (1987).

Y. Sun, J. W. Sulhoff, A. K. Srivastava, J. L. Zyskind, T. A. Strasser, J. R. Pedrazzani, C. Wolf, et al., ”80 nm ultra-wide band erbiumdoped silica fiber amplifier,” Electron. Lett. 33(23), 1965–1967 (1997).

S. Hwang, K. W. Song, H. J. Kwon, J. Koh, Y. J. Oh, and K. Cho, ”Broad band Erbium doped fiber amplifier with double-pass configuration,” IEEE Photonic. Tech. L. 13(12), 1289–1291 (2001).

C. H. Yeh, C. C. Lee, and S. Chi, ”120 nm bandwidth erbium doped fiber amplifier in parallel configuration,” IEEE Photonic. Tech. L. 17, 1055–1077 (2004).

I. Yamashita, K. Shimoura, S. Seikai, and T. Fukuoka, ”Er+3 doped fiber amplifier operating at wavelength of 1.55 and 1.60 µm,” Electron. Lett. 32(12), 1102–1103 (1996).

J. Nilsson, S. Y. Sun, S. T. Hwang, J. M. Kim, and S. J. Kim, ”Longwavelength erbium-doped fiber amplifier gain enhanced by ASE end-reflectors,” IEEE Photonic. Tech. L. 10, 1551–1553 (1998).

M. A. Mahdi, and H. Ahmad, ”Gain enhanced L-band Er3+-doped fiber amplifier utilizing unwanted backward ASE,” IEEE Photonic. Tech. L. 13, 1067–1069 (2001).

J. T. Ahn, M. Y. Jeon, and K. H. Kim, ”Two stage reflective type erbium doped fiber amplifier with enhanced noise figure characteristics,” Opt. Commun. 197(03) 121–125 (2001).

H. Meng, W. Gao, Y. Liu, H. Zhang, C. Zhao, S. Yuan, X. Dong, et al., ”The gain and noise figure improvement of reflection L-band erbium-doped fiber amplifier,” Opt. Commun. 228, 85–89 (2003).

H. B. Choi, J. M. Oh, and D. Lee, ”Simple and efficient L-band erbiumdoped fiber amplifiers for WDM networks,” Opt. Commun. 213, 63–66 (2002).

L. L. Yi, L. Zhan, J. H. Ji, Q. H. Ye, and Y. X. Xia, ”Improvement of gain and noise figure in double-pass L-band EDFA by incorporating a fiber Bragg grating,” IEEE Photonic. Tech. L. 16, 1005–1007 (2004).

S. W. Harun, and H. Ahmad, ”Low noise double pass L-band erbium-doped fiber amplifier,” Opt. Laser Technol. 36(3), 245–248 (2004).

T. C. Liang and S. Hsu, ”The L-band EDFA of high clamped gain and low noise figure implemented using fiber Bragg grating and double-pass method,” Opt. Commun. 281, 1134–1139 (2008).

B. Bouzid, M. B. Ali, and M. K. Abdullah, ”High gain EDFA design using double pass amplification with bandpass filter,” IEEE Photonic. Tech. L. 15(9), 1195–1197 (2003).

S. W. Harun, N. Tamchek, P. Poopalan, and H. Ahmad, ”Doublepass L-band EDFA with enhanced noise figure characteristics,” IEEE Photonic. Tech. L. 15, 1055–1057 (2003).

A. Altuncu, and A. Basgumus, ”Gain enhancement in L-band loop EDFA through C-band signal injection,” IEEE Photonic. Tech. L. 17(7), 1402–1404 (2005).

M. A. Mahdi, and S. J. Sheih, ”Low-noise 1480-nm pumped L-band erbium-doped fiber amplifiers incorporating a bypass isolator,” Opt. Commun. 237, 295–299 (2004).

R. Anthony, R. Lahiri, and S. Biswas, ”Gain clamped L-band EDFA with forward-backward pumping scheme using fiber Bragg grating,” Optik 125(11), 2463–2465 (2014).

M. A. Mahdi, K. A. Khairi, B. Bouzid, and M. K. Abdullah, ”Optimum pumping scheme of dual-stage triple pass erbium doped fiber amplifier,” IEEE Photonic. Tech. L. 16(2), 419–421 (2004).

Q. Z. Xuan, H. S. Ling, Z. X. Liang, and S. Fang, ”A novel 3-stage structure for a low-noise, high-gain and gain-flattened L-band erbium doped fiber amplifier,” J. Zhejiang Univ.-Sc. 5(9), 1130–1134 (2004).

C. F. Su, and L. Wang, ”Gain enhancement of L-band EDFA by using residual pump power in a three-stage configuration,” Opt. Commun. 416, 412–416 (2007).

N. Md. Yusoff, A. F. Abas, S. Hitam, and M. A. Mahdi, ”Dual-stage Lband erbium-doped fiber amplifier with distributed pumping from single pump laser,” Opt. Commun. 285(6), 1383–1386 (2012).