Transverse-Mode Switchable Few-Mode Ring Fiber Lasers

Xiaofeng Li; Zhe Li; Wenmao Wu; Juhao Li; Fang Ren

doi:10.3788/AOS202040.1406002

Journals >Acta Optica Sinica >Volume 40 >Issue 14 >Page 1406002 > Article

Acta Optica Sinica
Vol. 40, Issue 14, 1406002 (2020)

Transverse-Mode Switchable Few-Mode Ring Fiber Lasers

Xiaofeng Li¹, Zhe Li², Wenmao Wu², Juhao Li^1、*, and Fang Ren³

Author Affiliations

¹State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China

²Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China

³School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China

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DOI: 10.3788/AOS202040.1406002 Cite this Article Set citation alerts

Xiaofeng Li, Zhe Li, Wenmao Wu, Juhao Li, Fang Ren. Transverse-Mode Switchable Few-Mode Ring Fiber Lasers[J]. Acta Optica Sinica, 2020, 40(14): 1406002 Copy Citation Text

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Fig. 1. Schematic structure of the transverse mode-switchable few-mode ring fiber laser

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Principle of mode MUX/DEMUX. (a) Schematic of the MSC; (b) mode effective index matching graph for the LP01 in the SMF and the desired modes in the designed FMF; (c) schematic of all-fiber mode MUX/EDMUX

Fig. 2. Principle of mode MUX/DEMUX. (a) Schematic of the MSC; (b) mode effective index matching graph for the LP₀₁ in the SMF and the desired modes in the designed FMF; (c) schematic of all-fiber mode MUX/EDMUX

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Fig. 3. Mode intensity profiles of the few-mode laser. (a) LP₀₁ mode; (b) LP₁₁mode; (c) LP₂₁ mode; (d) hybrid mode

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Fig. 4. Relation between output power and pump power

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Fig. 5. Spectral feature of lasing output for the LP₀₁ mode, the LP₁₁ mode, the LP₂₁ mode, and the hybrid mode. (a) LP₀₁ mode; (b)LP₁₁ mode; (c)LP₂₁ mode; (d) hybrid mode

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Input port	Measured output port	Back to Back
LP₀₁	LP₀₁	-4.6
LP₀₁	LP₁₁	-14.8
LP₀₁	LP₂₁	-34.2
LP₁₁	LP₀₁	-18.5
LP₁₁	LP₁₁	-8.6
LP₁₁	LP₂₁	-26.9
LP₂₁	LP₀₁	-39.6
LP₂₁	LP₁₁	-29.7
LP₂₁	LP₂₁	-9.9

Table 1. Output power with back to back configurationdBm

Xiaofeng Li, Zhe Li, Wenmao Wu, Juhao Li, Fang Ren. Transverse-Mode Switchable Few-Mode Ring Fiber Lasers[J]. Acta Optica Sinica, 2020, 40(14): 1406002

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