High-sensitivity fiber-optic refractive index sensor based on multimode interference using small-core single-mode fiber for biosensing

Hideki Fukano, Tomohiro Aiga, Shuji Taue

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A fiber-optic refractive index (RI) sensor using multimode interference (MMI) composed of an unclad multimode fiber (MMF) sandwiched by smallcore single-mode fibers (SMFs) has been proposed and demonstrated. The small-core SMF at the input port enhances the diffraction of the light outputted to the MMF, and that at the output port provides a steep coupling characteristic of interfered light at the end of the MMF, resulting in the generation of a sharp signal. This leads to high sensitivity to small RI changes. A very high sensitivity of less than 6 ' 10%6 at an RI of more than 1.35 has been realized.

Original languageEnglish
Article number04EL08
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume53
Issue number4 SPEC. ISSUE
DOIs
Publication statusPublished - 2014

Fingerprint

Multimode fibers
Single mode fibers
Fiber optics
fiber optics
Refractive index
refractivity
interference
fibers
sensitivity
sensors
Sensors
Diffraction
output
diffraction

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

@article{77aa4a0148c741479fa6b3f9addeafc2,
title = "High-sensitivity fiber-optic refractive index sensor based on multimode interference using small-core single-mode fiber for biosensing",
abstract = "A fiber-optic refractive index (RI) sensor using multimode interference (MMI) composed of an unclad multimode fiber (MMF) sandwiched by smallcore single-mode fibers (SMFs) has been proposed and demonstrated. The small-core SMF at the input port enhances the diffraction of the light outputted to the MMF, and that at the output port provides a steep coupling characteristic of interfered light at the end of the MMF, resulting in the generation of a sharp signal. This leads to high sensitivity to small RI changes. A very high sensitivity of less than 6 ' 10{\%}6 at an RI of more than 1.35 has been realized.",
author = "Hideki Fukano and Tomohiro Aiga and Shuji Taue",
year = "2014",
doi = "10.7567/JJAP.53.04EL08",
language = "English",
volume = "53",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "INSTITUTE OF PURE AND APPLIED PHYSICS",
number = "4 SPEC. ISSUE",

}

TY - JOUR

T1 - High-sensitivity fiber-optic refractive index sensor based on multimode interference using small-core single-mode fiber for biosensing

AU - Fukano, Hideki

AU - Aiga, Tomohiro

AU - Taue, Shuji

PY - 2014

Y1 - 2014

N2 - A fiber-optic refractive index (RI) sensor using multimode interference (MMI) composed of an unclad multimode fiber (MMF) sandwiched by smallcore single-mode fibers (SMFs) has been proposed and demonstrated. The small-core SMF at the input port enhances the diffraction of the light outputted to the MMF, and that at the output port provides a steep coupling characteristic of interfered light at the end of the MMF, resulting in the generation of a sharp signal. This leads to high sensitivity to small RI changes. A very high sensitivity of less than 6 ' 10%6 at an RI of more than 1.35 has been realized.

AB - A fiber-optic refractive index (RI) sensor using multimode interference (MMI) composed of an unclad multimode fiber (MMF) sandwiched by smallcore single-mode fibers (SMFs) has been proposed and demonstrated. The small-core SMF at the input port enhances the diffraction of the light outputted to the MMF, and that at the output port provides a steep coupling characteristic of interfered light at the end of the MMF, resulting in the generation of a sharp signal. This leads to high sensitivity to small RI changes. A very high sensitivity of less than 6 ' 10%6 at an RI of more than 1.35 has been realized.

UR - http://www.scopus.com/inward/record.url?scp=84903274410&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903274410&partnerID=8YFLogxK

U2 - 10.7567/JJAP.53.04EL08

DO - 10.7567/JJAP.53.04EL08

M3 - Article

AN - SCOPUS:84903274410

VL - 53

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 4 SPEC. ISSUE

M1 - 04EL08

ER -