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Regular | Open Access

A Four-Element Sensor Array Consisting of Asymmetric Distributed-Feedback Fiber Lasers

Pengpeng WANG1, Jun CHANG1( ), Cunguang ZHU1, Boning SUN1, Guangping LV1, Sasa ZHANG1, Yanjie ZHAO1,2, Zhihui SUN2, Xiaolei ZHANG2, Gangding PENG1,2,3
School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan, 250100, China
Laser Institute of Shandong Academy of Science, Jinan, 250014, China
Photonics & Optical Communications Group, School of Electrical Engineering & Telecommunications, the University of New South Wales, Sydney 2052, Australia
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Abstract

A sensor array system formed by arranging four asymmetric distributed-feedback fiber lasers (DFB-FL) in ascending order according to their slope efficiencies was proposed. The output flatness could be effectively improved with the application of asymmetric DFB-FLs. The last element had almost the same output with the others although it obtained the smallest pump power. The relative intensity noise (RIN) and relaxation oscillation frequency of the sensor array were also analyzed. It is found that the relaxation oscillation frequency of a certain DFB-FL was relevant to its relative position in the array. And the RIN of a certain DFB-FL was always affected by the other elements in the array, which was not dependent on the order of their arrangement.

Keywords

Asymmetric DFB fiber lasersensor arrayintensity noiserelaxation oscillation

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Photonic Sensors
Volume 4 Issue 2,
June 2014
Pages 180-187
DOI: 10.1007/s13320-014-0167-2

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Cite this article:
WANG P, CHANG J, ZHU C, et al. A Four-Element Sensor Array Consisting of Asymmetric Distributed-Feedback Fiber Lasers. Photonic Sensors, 2014, 4(2): 180-187. https://doi.org/10.1007/s13320-014-0167-2

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Received: 14 December 2013
Revised: 28 December 2013
Published: 09 April 2014
© The Author(s) 2014.

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