Bandwidth optimization research of wide-band optical source with the Er<sup>3+</sup>-doped fiber amplified spontaneous emission

HAO Yunqi; JIA Ruoyi; DING Beibei; ZHONG Mengyang; YANG Kun

doi:10.7510/jgjs.issn.1001-3806.2023.04.009

LASER TECHNOLOGY > 2023 > 47(4): 500-505. > DOI: 10.7510/jgjs.issn.1001-3806.2023.04.009

HAO Yunqi, JIA Ruoyi, DING Beibei, ZHONG Mengyang, YANG Kun. Bandwidth optimization research of wide-band optical source with the Er³⁺-doped fiber amplified spontaneous emission[J]. LASER TECHNOLOGY, 2023, 47(4): 500-505. DOI: 10.7510/jgjs.issn.1001-3806.2023.04.009

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Bandwidth optimization research of wide-band optical source with the Er³⁺-doped fiber amplified spontaneous emission

HAO Yunqi^1,2,3,
JIA Ruoyi^1,2,3,
DING Beibei^1,2,3,
ZHONG Mengyang^1,2,3,
YANG Kun^1,2,3, ,

1.
College of Physics and Electric Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
2.
Henan Key Laboratory of Magnetoelectric Information Functional Materials, Zhengzhou University of Light Industry, Zhengzhou 450001, China
3.
Zhengzhou Key Laboratory of Information Optics and Photoelectric Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, China

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Received Date: May 15, 2022
Revised Date: June 12, 2022
Published Date: July 24, 2023

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Abstract

Abstract

In order to solve the natural narrow bandwidth of wide-bandwidth optical source with Er³⁺-doped fiber amplified spontaneous emission, the configuration of double-pass, backward pumped, and connected unpumped-fiber was proposed to eliminate the influence of pump source and broaden its bandwidth. The numerical simulation and experiment were carried out. The influence of Er³⁺-doped fiber length and reflection coefficient of fiber reflect mirror on the optical spectrum was analyzed in detail. The optimization effect of unpumped Er³⁺-doped fiber on the amplified spontaneous emission output spectrum was studied. The results show that, with increasing the length of pumped fiber, the C-band of the amplified spontaneous emission spectrum decreases slowly, and L-band raises. When the reflect coefficient of mirror increases, the bandwidth of amplified spontaneous emission was broadened correspondingly. The bandwidth of amplified spontaneous emission is 50.31 nm when the pumped and unpumped fiber is 6 m and 2 m respectively, which is improved 44 nm. All the results obtained could provide support for the design of wide-band optical source.

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References (20)

References

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Bandwidth optimization research of wide-band optical source with the Er³⁺-doped fiber amplified spontaneous emission