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

Wu, Qiang, Yuan, Jinhui, Yu, Chongxiu, Sang, Xinzhu, Sun, Lipeng, Li, Jie, Guo, Tuan, Guan, Baiou, Chan, Hau Ping, Chiang, Kin Seng, Ma, Youqiao, Wang, Pengfei, Semenova, Yuliya and Farrell, Gerald (2014) UV exposure on a single-mode fiber within a multimode interference structure. Optics Letters, 39 (22). p. 6521. ISSN 0146-9592

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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

Item Type:	Article
Subjects:	F300 Physics H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Ay Okpokam
Date Deposited:	12 May 2015 09:08
Last Modified:	12 Oct 2019 19:08
URI:	http://nrl.northumbria.ac.uk/id/eprint/22439

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