Picoliter-volume glucose concentration microsensor based on miniature abrupt-tapered Mach-Zehnder-interferometer

Zhi Zheng Feng, Tsung Hsun Yang, Nan Kuang Chen, Yi Ning Chen, Yu Chung Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report an ultracompact Mach-Zehnder index sensor with a device length of 438.6 μm using two micro-abrupt-tapers in a cladding-reduced strongly-guiding fiber based on a focused CO 2 laser beam. The cladding of strongly-guiding fiber is chemically etched before irradiated by a focused CO 2 laser beam. The index sensitivity is 600 nm/refractive index unit respectively at around 1.37 μm wavelength with a volume of 31.2 picoliter optical liquid trapping at one micro-abrupttaper. A 72 picoliter glucose liquid with concentration of 200 mg/dL can lead to a red-shift of 0.8 nm at 1.3 μ.

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII
DOIs
Publication statusPublished - 2012 Jun 13
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII - San Francisco, CA, United States
Duration: 2012 Jan 212012 Jan 22

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8218
ISSN (Print)1605-7422

Other

OtherOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII
CountryUnited States
CitySan Francisco, CA
Period12-01-2112-01-22

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

Cite this

Feng, Z. Z., Yang, T. H., Chen, N. K., Chen, Y. N., & Chang, Y. C. (2012). Picoliter-volume glucose concentration microsensor based on miniature abrupt-tapered Mach-Zehnder-interferometer. In Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII [821807] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 8218). https://doi.org/10.1117/12.904699