TY - JOUR
T1 - High-sensitivity multipoint refractive index measurement system composed of multimode interference sensors and arrayed waveguide wavelength filters
AU - Fukano, Hideki
AU - Mukai, Takahito
N1 - Funding Information:
This research was supported by the Okayama Foundation for Science and Technology.
Publisher Copyright:
© 2022 The Japan Society of Applied Physics.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - A multipoint sensing measurement system with high sensitivity was developed by combining multimode interference (MMI) sensors and a wavelength selection configuration. MMI optical fibers and an arrayed waveguide (AWG) wavelength filter work as refractive index sensors and wavelength selector, respectively. They were operated with a fine calibration technique using dual AWG wavelength filters and defined wavelength light from a tunable laser source. By employing narrow-core single-mode fibers for the input and output ports of the MMI, the optical fiber improved the average sensitivity up to 820 dB/RIU under multipoint sensing conditions.
AB - A multipoint sensing measurement system with high sensitivity was developed by combining multimode interference (MMI) sensors and a wavelength selection configuration. MMI optical fibers and an arrayed waveguide (AWG) wavelength filter work as refractive index sensors and wavelength selector, respectively. They were operated with a fine calibration technique using dual AWG wavelength filters and defined wavelength light from a tunable laser source. By employing narrow-core single-mode fibers for the input and output ports of the MMI, the optical fiber improved the average sensitivity up to 820 dB/RIU under multipoint sensing conditions.
KW - fiber sensor
KW - multimode interference
KW - multipoint
KW - multipoint measurement system
KW - refractive index measurement
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U2 - 10.35848/1347-4065/ac5d87
DO - 10.35848/1347-4065/ac5d87
M3 - Article
AN - SCOPUS:85133029438
VL - 61
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
SN - 0021-4922
IS - SK
M1 - SK1004
ER -