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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)15848-15853
Number of pages6
JournalOptics Express
Volume15
Issue number24
DOIs
Publication statusPublished - 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

Fingerprint Dive into the research topics of 'A refractometer based on a micro-slot in a fiber Bragg grating formed by chemically assisted femtosecond laser processing'. Together they form a unique fingerprint.

  • Cite this