Fiber-optic displacement sensor with 4 nm resolution (~ λ/400) at 1550 nm using off-axis interferometer

Zhen Tian; Nan-Kuang Chen; Perry Ping Shum; Lina Suo; Yicun Yao; Liqiang Zhang; Kenneth T. V. Grattan; B. M. Azizur Rahman; Raman Kashyap

doi:10.1364/CLEO_AT.2021.JTu3A.176

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper JTu3A.176
•https://doi.org/10.1364/CLEO_AT.2021.JTu3A.176

Fiber-optic displacement sensor with 4 nm resolution (~ λ/400) at 1550 nm using off-axis interferometer

Zhen Tian, Nan-Kuang Chen, Perry Ping Shum, Lina Suo, Yicun Yao, Liqiang Zhang, Kenneth T. V. Grattan, B. M. Azizur Rahman, and Raman Kashyap

CLEO: Applications and Technology 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Joint Poster Session I (JTu3A)

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Z. Tian, N. Chen, P. P. Shum, L. Suo, Y. Yao, L. Zhang, K. T. V. Grattan, B. M. Azizur Rahman, and R. Kashyap, "Fiber-optic displacement sensor with 4 nm resolution (~ λ/400) at 1550 nm using off-axis interferometer," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper JTu3A.176.

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Abstract

A fiber-optic displacement sensor with ~λ/400 spatial resolution, at an operating wavelength of ~1550 nm, using an off-axis fiber interferometer and achieving the best displacement resolution of 4-nm in the optical domain has been demonstrated.

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