UV exposure on a single-mode fiber within a multimode interference structure

Qiang Wu; Jinhui Yuan; Chongxiu Yu; Xinzhu Sang; Lipeng Sun; Jie Li; Tuan Guo; Baiou Guan; Hauping Chan; Kin SengChiang; Youqiao Ma; Pengfei Wang; Yuliya Semenova; Gerald Farrell

doi:10.1364/OL.39.006521

UV exposure on a single-mode fiber within a multimode interference structure

Qiang Wu, Jinhui Yuan, Chongxiu Yu, Xinzhu Sang, Lipeng Sun, Jie Li, Tuan Guo, Baiou Guan, Hauping Chan, Kin SengChiang, Youqiao Ma, Pengfei Wang, Yuliya Semenova, Gerald Farrell

School of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We experimentally study the effects of UV exposure on a single-mode fiber (SMF) with a fiber multimode interferometer (MMI) based on the singlemode-multimode-singlemode-multimode-singlemode (SMSMS) fiber structure. We observe a wavelength shift of over 33 nm when irradiating the central SMF in the SMSMS fiber structure with a 3-mm-width UV beam (the UV laser has a wavelength of 193 nm and pulse energy of 3 mJ). According to our numerical simulation, the SMSMS fiber structure can achieve a very high refractive-index (RI) sensitivity of 67670 nm/RIU with a very good linearity of R² ∼ 0.9999. The structure can find potential application for high-sensitivity RI sensing by replacing the central SMF with a hollow-core optical fiber filled with the sample under test. The UV exposure technique can be used for tuning the characteristics of fiber MMI devices.

Original language	English
Pages (from-to)	6521-6524
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	22
DOIs	https://doi.org/10.1364/OL.39.006521
Publication status	Published - 15 Nov 2014

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title = "UV exposure on a single-mode fiber within a multimode interference structure",

abstract = "We experimentally study the effects of UV exposure on a single-mode fiber (SMF) with a fiber multimode interferometer (MMI) based on the singlemode-multimode-singlemode-multimode-singlemode (SMSMS) fiber structure. We observe a wavelength shift of over 33 nm when irradiating the central SMF in the SMSMS fiber structure with a 3-mm-width UV beam (the UV laser has a wavelength of 193 nm and pulse energy of 3 mJ). According to our numerical simulation, the SMSMS fiber structure can achieve a very high refractive-index (RI) sensitivity of 67670 nm/RIU with a very good linearity of R2 ∼ 0.9999. The structure can find potential application for high-sensitivity RI sensing by replacing the central SMF with a hollow-core optical fiber filled with the sample under test. The UV exposure technique can be used for tuning the characteristics of fiber MMI devices.",

author = "Qiang Wu and Jinhui Yuan and Chongxiu Yu and Xinzhu Sang and Lipeng Sun and Jie Li and Tuan Guo and Baiou Guan and Hauping Chan and Kin SengChiang and Youqiao Ma and Pengfei Wang and Yuliya Semenova and Gerald Farrell",

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year = "2014",

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doi = "10.1364/OL.39.006521",

language = "English",

volume = "39",

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TY - JOUR

T1 - UV exposure on a single-mode fiber within a multimode interference structure

AU - Wu, Qiang

AU - Yuan, Jinhui

AU - Yu, Chongxiu

AU - Sang, Xinzhu

AU - Sun, Lipeng

AU - Li, Jie

AU - Guo, Tuan

AU - Guan, Baiou

AU - Chan, Hauping

AU - SengChiang, Kin

AU - Ma, Youqiao

AU - Wang, Pengfei

AU - Semenova, Yuliya

AU - Farrell, Gerald

PY - 2014/11/15

Y1 - 2014/11/15

N2 - We experimentally study the effects of UV exposure on a single-mode fiber (SMF) with a fiber multimode interferometer (MMI) based on the singlemode-multimode-singlemode-multimode-singlemode (SMSMS) fiber structure. We observe a wavelength shift of over 33 nm when irradiating the central SMF in the SMSMS fiber structure with a 3-mm-width UV beam (the UV laser has a wavelength of 193 nm and pulse energy of 3 mJ). According to our numerical simulation, the SMSMS fiber structure can achieve a very high refractive-index (RI) sensitivity of 67670 nm/RIU with a very good linearity of R2 ∼ 0.9999. The structure can find potential application for high-sensitivity RI sensing by replacing the central SMF with a hollow-core optical fiber filled with the sample under test. The UV exposure technique can be used for tuning the characteristics of fiber MMI devices.

AB - We experimentally study the effects of UV exposure on a single-mode fiber (SMF) with a fiber multimode interferometer (MMI) based on the singlemode-multimode-singlemode-multimode-singlemode (SMSMS) fiber structure. We observe a wavelength shift of over 33 nm when irradiating the central SMF in the SMSMS fiber structure with a 3-mm-width UV beam (the UV laser has a wavelength of 193 nm and pulse energy of 3 mJ). According to our numerical simulation, the SMSMS fiber structure can achieve a very high refractive-index (RI) sensitivity of 67670 nm/RIU with a very good linearity of R2 ∼ 0.9999. The structure can find potential application for high-sensitivity RI sensing by replacing the central SMF with a hollow-core optical fiber filled with the sample under test. The UV exposure technique can be used for tuning the characteristics of fiber MMI devices.

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U2 - 10.1364/OL.39.006521

DO - 10.1364/OL.39.006521

M3 - Article

AN - SCOPUS:84910146440

SN - 0146-9592

VL - 39

SP - 6521

EP - 6524

JO - Optics Letters

JF - Optics Letters

IS - 22

ER -

UV exposure on a single-mode fiber within a multimode interference structure

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