A refractometer based on a micro-slot in a fiber Bragg grating formed by chemically assisted femtosecond laser processing

Kaiming Zhou; Yicheng Lai; Xianfeng Chen; Kate Sugden; Lin Zhang; Ian Bennion

doi:10.1364/OE.15.015848

A refractometer based on a micro-slot in a fiber Bragg grating formed by chemically assisted femtosecond laser processing

Kaiming Zhou^*, Yicheng Lai, Xianfeng Chen, Kate Sugden, Lin Zhang, Ian Bennion

^*Corresponding author for this work

Aston Institute of Photonic Technologies (AiPT)

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

Abstract

A liquid core waveguide as a refractometer is proposed. Microtunnels were created in standard optical fiber using tightly focused femtoscond laser inscription and chemical etching. A 1.2(h)×l25(d) ×500(1) μm micro-slot engraved along a fiber Bragg grating (FBG) was used to construct liquid core waveguide by filling the slot with index matching oils. The device was used to measure refractive index and sensitivity up to 10^-6/pm was obtained. © 2007 Optical Society of America.

Original language	English
Pages (from-to)	15848-15853
Number of pages	6
Journal	Optics Express
Volume	15
Issue number	24
DOIs	https://doi.org/10.1364/OE.15.015848
Publication status	Published - Nov 2007

Bibliographical note

© 2007 Optical Society of America.
This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?id=144894. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Keywords

liquid core waveguide
refractometer
microtunnels
standard optical fiber
femtoscond laser inscription
chemical etching

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10.1364/OE.15.015848

A refractometer based on a micro-slot in a fiber Bragg grating
© 2007 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?id=144894. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Final published version, 2.67 MB

Cite this

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abstract = "A liquid core waveguide as a refractometer is proposed. Microtunnels were created in standard optical fiber using tightly focused femtoscond laser inscription and chemical etching. A 1.2(h)×l25(d) ×500(1) μm micro-slot engraved along a fiber Bragg grating (FBG) was used to construct liquid core waveguide by filling the slot with index matching oils. The device was used to measure refractive index and sensitivity up to 10-6/pm was obtained. {\textcopyright} 2007 Optical Society of America.",

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AU - Zhang, Lin

AU - Bennion, Ian

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A refractometer based on a micro-slot in a fiber Bragg grating formed by chemically assisted femtosecond laser processing

Abstract

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