University of Limerick
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Correlation between emission and relative intensity noise spectral profiles of an Er-doped fiber superfluorescent source

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posted on 2023-03-15, 14:46 authored by Xuanchen Guo, Quan Chai, Xueying Zhao, Shaonian Ma, Gui Xiao, Jianzhong Zhang, ELFED LEWISELFED LEWIS, Gang-Ding Peng

The spectral characteristics of the relative intensity noise (RIN) of two amplified spontaneous emission (ASE) sources are experimentally measured. An Er-doped fiber superfluorescent source (EDF-SFS) is investigated and compared with a super-luminescent diode (SLD) source, using a simple tunable fiber Bragg grating filter-based system. Experimental results based on normal ASE operation conditions showed that the RIN distribution of the EDF-SFS is correlated with its emission spectral profile, which is different from the results observed using the SLD source. This finding shows for the first time that an EDF-SFS based ASE has fundamentally different RIN characteristics from other known existing spontaneous emission broadband sources. The amplifying process of the EDF-SFS is discussed and confirmed using a rate equation-based simulation.


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Other Funding information

This work was supported primarily by the National Natural Science Foundation of China (Grant Nos. 61775045 and 61805054), the National Key Research and Development Program of China (Grant No. 2016YFF0200700), the Science and Technology on Solid-State Laser Laboratory Funding, the CETC Funding, the Fundamental Research Funds of the Central University China, and the 111 Project B13015 to the Harbin Engineering University

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  • Electronic & Computer Engineering

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