High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber

A high-efficiency coupling method using the gradient-index (GRIN) fiber probe and hollow-core photonic crystal fiber (HC-PCF) is proposed to improve the response time and the sensitivity of gas sensors. A coupling efficiency model of the GRIN fiber probe coupled with HC-PCF is analyzed. An optimizat...

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Main Authors: Wang, Chi, Zhang, Yue, Sun, Jianmei, Li, Jinhui, Luan, Xinqun, Asundi, Anand
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/87811
http://hdl.handle.net/10220/49302
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-878112023-03-04T17:16:34Z High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber Wang, Chi Zhang, Yue Sun, Jianmei Li, Jinhui Luan, Xinqun Asundi, Anand School of Mechanical and Aerospace Engineering Hollow-core Photonic Crystal Fiber GRIN Fiber Probe Engineering::Mechanical engineering A high-efficiency coupling method using the gradient-index (GRIN) fiber probe and hollow-core photonic crystal fiber (HC-PCF) is proposed to improve the response time and the sensitivity of gas sensors. A coupling efficiency model of the GRIN fiber probe coupled with HC-PCF is analyzed. An optimization method is proposed to guide the design of the probe and five samples of the GRIN fiber probe with different performances are designed, fabricated, and measured. Next, a coupling efficiency experimental system is established. The coupling efficiencies of the probes and single-mode fiber (SMF) are measured and compared. The experimental results corrected by image processing show that the GRIN fiber probe can achieve a coupling efficiency of 80.22% at distances up to 180 μm, which is obviously superior to the value of 33.45% of SMF at the same distance. Moreover, with the increase of the coupling distance, the coupling efficiency of the probe is still higher than that of SMF. Published version 2019-07-11T08:42:15Z 2019-12-06T16:49:56Z 2019-07-11T08:42:15Z 2019-12-06T16:49:56Z 2019 Journal Article Wang, C., Zhang, Y., Sun, J., Li, J., Luan, X., & Asundi, A. (2019). High-Efficiency Coupling Method of the Gradient-Index Fiber Probe and Hollow-Core Photonic Crystal Fiber. Applied Sciences, 9(10), 2073-. doi:10.3390/app9102073 2076-3417 https://hdl.handle.net/10356/87811 http://hdl.handle.net/10220/49302 10.3390/app9102073 en Applied Sciences © 2019 by the Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). 10 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Hollow-core Photonic Crystal Fiber
GRIN Fiber Probe
Engineering::Mechanical engineering
spellingShingle Hollow-core Photonic Crystal Fiber
GRIN Fiber Probe
Engineering::Mechanical engineering
Wang, Chi
Zhang, Yue
Sun, Jianmei
Li, Jinhui
Luan, Xinqun
Asundi, Anand
High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
description A high-efficiency coupling method using the gradient-index (GRIN) fiber probe and hollow-core photonic crystal fiber (HC-PCF) is proposed to improve the response time and the sensitivity of gas sensors. A coupling efficiency model of the GRIN fiber probe coupled with HC-PCF is analyzed. An optimization method is proposed to guide the design of the probe and five samples of the GRIN fiber probe with different performances are designed, fabricated, and measured. Next, a coupling efficiency experimental system is established. The coupling efficiencies of the probes and single-mode fiber (SMF) are measured and compared. The experimental results corrected by image processing show that the GRIN fiber probe can achieve a coupling efficiency of 80.22% at distances up to 180 μm, which is obviously superior to the value of 33.45% of SMF at the same distance. Moreover, with the increase of the coupling distance, the coupling efficiency of the probe is still higher than that of SMF.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Wang, Chi
Zhang, Yue
Sun, Jianmei
Li, Jinhui
Luan, Xinqun
Asundi, Anand
format Article
author Wang, Chi
Zhang, Yue
Sun, Jianmei
Li, Jinhui
Luan, Xinqun
Asundi, Anand
author_sort Wang, Chi
title High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
title_short High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
title_full High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
title_fullStr High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
title_full_unstemmed High-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
title_sort high-efficiency coupling method of the gradient-index fiber probe and hollow-core photonic crystal fiber
publishDate 2019
url https://hdl.handle.net/10356/87811
http://hdl.handle.net/10220/49302
_version_ 1759856201469788160