Correlation between emission and relative intensity noise spectral profiles of an Er-doped fiber superfluorescent source
Xuanchen Guo,
Quan Chai,
Xueying Zhao,
Shaonian Ma,
Gui Xiao,
Jianzhong Zhang,
Elfed Lewis,
Gang-Ding Peng
Affiliations
Xuanchen Guo
Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Opto-electric Engineering, Harbin Engineering University, Harbin 150001, China
Quan Chai
Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Opto-electric Engineering, Harbin Engineering University, Harbin 150001, China
Xueying Zhao
Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Opto-electric Engineering, Harbin Engineering University, Harbin 150001, China
Shaonian Ma
Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Opto-electric Engineering, Harbin Engineering University, Harbin 150001, China
Gui Xiao
Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Opto-electric Engineering, Harbin Engineering University, Harbin 150001, China
Jianzhong Zhang
Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Opto-electric Engineering, Harbin Engineering University, Harbin 150001, China
Elfed Lewis
Optical Fiber Sensors Research Center, University of Limerick, V94 T9PX Limerick, Ireland
Gang-Ding Peng
Photonics and Optical Communications Group, School of Electrical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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.
