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


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.

Publication DOI: https://doi.org/10.1364/OE.15.015848
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 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.
Uncontrolled Keywords: liquid core waveguide,refractometer,microtunnels,standard optical fiber,femtoscond laser inscription,chemical etching,Atomic and Molecular Physics, and Optics
Publication ISSN: 1094-4087
Last Modified: 28 May 2024 07:07
Date Deposited: 17 Jun 2015 15:22
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://www.opti ... t.cfm?id=144894 (Publisher URL)
PURE Output Type: Article
Published Date: 2007-11
Authors: Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)
Lai, Yicheng
Chen, Xianfeng
Sugden, Kate (ORCID Profile 0000-0001-6323-1082)
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Bennion, Ian



Version: Published Version

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