Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe
The light-beam expansion effect of a no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe is investigated with a view to optimizing the optical performance of such probes. By taking the variable relationship between the focusing performance (including the working di...
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sg-ntu-dr.10356-1417352020-06-10T05:42:47Z Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe Bi, Shubo Wang, Chi Zhu, Jun Yuan, Zhiwen Yu, Yingjie Valyukh, Sergiy Asundi, Anand School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Optical Probe Ultra-small Gradient-index Probe Design The light-beam expansion effect of a no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe is investigated with a view to optimizing the optical performance of such probes. By taking the variable relationship between the focusing performance (including the working distance and the focusing spot size) of the probe and the length of the no-core fiber as the criterion, the effective beam expansion length of the no-core fiber in the ultra-small gradient-index fiber probe is calculated based on the basic properties of the Gaussian beam. Verification and analysis are done by numerical calculations and experimental measurements, respectively. The obtained results show that the working distance of an ultra-small gradient-index fiber probe can be increased effectively by adding a no-core fiber; however, this will lead to increasing the focusing spot size. For the parameters of the fiber probe studied here, the effective beam expansion length of the no-core fiber spacer is less than 0.357 mm. 2020-06-10T05:42:47Z 2020-06-10T05:42:47Z 2018 Journal Article Bi, S., Wang, C., Zhu, J., Yuan, Z., Yu, Y., Valyukh, S., & Asundi, A. (2018). Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe. Optics and Lasers in Engineering, 107, 46-53. doi:10.1016/j.optlaseng.2018.03.008 0143-8166 https://hdl.handle.net/10356/141735 10.1016/j.optlaseng.2018.03.008 2-s2.0-85043782774 107 46 53 en Optics and Lasers in Engineering © 2018 Elsevier Ltd. All rights reserved. |
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Engineering::Mechanical engineering Optical Probe Ultra-small Gradient-index Probe Design Bi, Shubo Wang, Chi Zhu, Jun Yuan, Zhiwen Yu, Yingjie Valyukh, Sergiy Asundi, Anand Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
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The light-beam expansion effect of a no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe is investigated with a view to optimizing the optical performance of such probes. By taking the variable relationship between the focusing performance (including the working distance and the focusing spot size) of the probe and the length of the no-core fiber as the criterion, the effective beam expansion length of the no-core fiber in the ultra-small gradient-index fiber probe is calculated based on the basic properties of the Gaussian beam. Verification and analysis are done by numerical calculations and experimental measurements, respectively. The obtained results show that the working distance of an ultra-small gradient-index fiber probe can be increased effectively by adding a no-core fiber; however, this will lead to increasing the focusing spot size. For the parameters of the fiber probe studied here, the effective beam expansion length of the no-core fiber spacer is less than 0.357 mm. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Bi, Shubo Wang, Chi Zhu, Jun Yuan, Zhiwen Yu, Yingjie Valyukh, Sergiy Asundi, Anand |
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Article |
author |
Bi, Shubo Wang, Chi Zhu, Jun Yuan, Zhiwen Yu, Yingjie Valyukh, Sergiy Asundi, Anand |
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Bi, Shubo |
title |
Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
title_short |
Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
title_full |
Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
title_fullStr |
Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
title_full_unstemmed |
Influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
title_sort |
influence of no-core fiber on the focusing performance of an ultra-small gradient-index fiber probe |
publishDate |
2020 |
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https://hdl.handle.net/10356/141735 |
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1681059570647040000 |