Vortex Mode Amplification Based on Ring-Core Fiber Doped with PbSe Quantum Dots

Hengfei Guo; Huimei Wei; Na Chen; Yanhua Dong; Jianxiang Wen; Yana Shang; Zhenyi Chen; Fufei Pang

doi:10.3788/LOP231164

Laser & Optoelectronics Progress, Volume. 61, Issue 9, 0906001(2024)

Vortex Mode Amplification Based on Ring-Core Fiber Doped with PbSe Quantum Dots

Hengfei Guo^1,2, Huimei Wei^1,2, Na Chen^1,2, Yanhua Dong^1,2, Jianxiang Wen^1,2, Yana Shang^1,2、*, Zhenyi Chen^1,2, and Fufei Pang^1,2

Author Affiliations

¹Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China

²Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai 200444, China

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Figures & Tables(11)

Fig. 1. Preparation flow chart of PbSe quantum dot-doped ring-core fiber

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Fig. 2. Cross-section of the PbSe quantum dot-doped ring-core fiber. (a) Cross-section of the designed fiber; (b) cross-section of the prepared fiber

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Fig. 3. Raman spectrum of the PbSe quantum dot-doped ring-core fiber

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Fig. 4. Electron microscopy test of PbSe QDs. (a) HRTEM micrograph of PbSe QDs; (b) SAED micrograph of corresponding lattice structures; (c) heterogeneous structure of the PbSe QDs

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Fig. 5. Fluorescence spectra of PbSe quantum dot-doped ring-core fiber

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Fig. 6. Schematic diagram of vortex beam amplification system

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Fig. 7. OAM modes at the intput. (a)‒(c) Field intensity distributions of OAM_|_l_|=1~3 modes; (d)‒(f) spiral interference patterns of OAM_|_l_|=1~3 modes

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Fig. 8. OAM modes at the output. (a)-(c) Field intensity distributions of OAM_|_l_|=1~3 modes; (d)-(f) spiral interference patterns of OAM_|_l_|=1~3 modes

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Fig. 9. Gain characteristic. (a) OAM mode on-off gain varies with pump power; (b) DMG varies with pump power

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Table 1. Mass fraction of different elements in the PbSe quantum dot-doped ring-core fiber
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Table 1. Mass fraction of different elements in the PbSe quantum dot-doped ring-core fiber
Element Mass fraction /%
O 54.8079
Si 33.8807
Ge 11.1946
B 0
Pb 0.1047
Se 0.0121
Total 100

Table 2. Comparison of our results with recently published work on fiber amplifier

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Table 2. Comparison of our results with recently published work on fiber amplifier

Gain medium	OAM order	Wavelength /nm	Gain /dB	DMG /dB
Er^［10］	\|l\|=0—3	1540‒1560	22.9	1.8
Er^［11］	\|l\|=1—2	1530‒1565	26.6	1.6
PbS^［15］	‒	1470‒1620	16‒19	‒
PbS^［16］	‒	1050‒1350	15.0	‒
PbSe^［21］	‒	1250‒1370	12	‒
PbSe（proposed）	\|l\|=1—3	1530‒1565	13	2.45

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Hengfei Guo, Huimei Wei, Na Chen, Yanhua Dong, Jianxiang Wen, Yana Shang, Zhenyi Chen, Fufei Pang. Vortex Mode Amplification Based on Ring-Core Fiber Doped with PbSe Quantum Dots[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0906001

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Apr. 24, 2023

Accepted: May. 26, 2023

Published Online: May. 10, 2024

The Author Email: Yana Shang (ynshang@shu.edu.cn)

DOI:10.3788/LOP231164

CSTR:32186.14.LOP231164

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Mass fraction of different elements in the PbSe quantum dot-doped ring-core fiber

Table 1. Mass fraction of different elements in the PbSe quantum dot-doped ring-core fiber

Table 2. Comparison of our results with recently published work on fiber amplifier

Table 2. Comparison of our results with recently published work on fiber amplifier