All-fiber frequency shifter via mode conversion for optical heterodyne micro-vibration measurement

Longkun Zhang; Longkun Zhang; Jiafeng Lu; Qian Xu; Jianfeng Sun; Xianglong Zeng

doi:10.1364/CLEO_AT.2020.JW2B.12

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2020),
paper JW2B.12
•https://doi.org/10.1364/CLEO_AT.2020.JW2B.12

All-fiber frequency shifter via mode conversion for optical heterodyne micro-vibration measurement

Longkun Zhang, Jiafeng Lu, Qian Xu, Jianfeng Sun, and Xianglong Zeng

CLEO: Applications and Technology 2020

Washington, DC United States
10–15 May 2020
ISBN: 978-1-943580-76-7

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Joint Poster Session 8 (JW2B)

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L. Zhang, J. Lu, Q. Xu, J. Sun, and X. Zeng, "All-fiber frequency shifter via mode conversion for optical heterodyne micro-vibration measurement," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optica Publishing Group, 2020), paper JW2B.12.

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Abstract

We demonstrate an all-fiber mode conversion frequency shifter (MCFS) for optical heterodyne microvibration detection, which efficiently converts LP11 core mode to LP01 mode and acts as a frequency shifter. The SNR is ~ 65 dB.

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