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18 March 2020 Nonlinear spurs caused by nonsaturated erbium-doped fiber amplifier in analog photonic links
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Abstract

Erbium-doped fiber amplifier (EDFA) is widely used in the optical communication system, and it is usually used as a linear amplifier in most scenarios. However, in analog photonic links, we observe the nonlinear spurs caused by EDFA. In the analog photonic link, the dynamic range is one of the most important characteristics while the nonlinear spurs set the upper limit of input signal power. We study the nonlinearity caused by EDFA in analog photonic links when the input power of EDFA fluctuates at a low frequency. We have theoretically and experimentally studied the characteristics of the nonlinear spurs caused by EDFA.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Xin Zhong, Jie Gu, Shanhong Guan, and Yitang Dai "Nonlinear spurs caused by nonsaturated erbium-doped fiber amplifier in analog photonic links," Optical Engineering 59(3), 036109 (18 March 2020). https://doi.org/10.1117/1.OE.59.3.036109
Received: 19 October 2019; Accepted: 3 March 2020; Published: 18 March 2020
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