Chinese Optics Letters, 2005, 3 (1): 0106, Published Online: Jun. 6, 2006
Ultra-low noise C-band erbium-doped fiber preamplifier
060.2320 fiber optics amplifiers and oscillators 060.2410 fibers erbium 060.2330 fiber optics communications
Abstract
Focused on the low noise figure requirements of erbium-doped preamplifiers, a two stage cascade preamplifier was presented based on the optimized design. With the total fiber length of 31.4 m and total pump power of 135 mW, this preamplifier can produce above 30-dB gain and keep the noise figure below 4.76 dB for all C-band signals, with the minimum noise figure as low as 3.38 dB for -30-dBm, 1550-nm signal.
Yanyong Wang, Huanmin Bao, Xiaojun Jiang, Tianxin Yang, Shichen Li, Zhan Sui, Mingzhong Li, Lei Ding, Janjun Wang, Yue Liang. Ultra-low noise C-band erbium-doped fiber preamplifier[J]. Chinese Optics Letters, 2005, 3(1): 0106.
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