Coupling-Wave Structures for Optical Waveguide Sensors

De–Kui QING; Ichirou YAMAGUCHI; Kiminori ITOH; Masayuki MURABAYASHI

doi:10.1007/s10043-997-0578-z

De–Kui QING, Ichirou YAMAGUCHI, Kiminori ITOH, Masayuki MURABAYASHI

著者情報

キーワード: codirectional coupler, coupling wave, optical waveguide sensors, absorption-based sensors, fluorescence-based sensors, refractive-index-based sensors

ジャーナルフリー

1997 年 4 巻 5 号 p. 578-583

DOI https://doi.org/10.1007/s10043-997-0578-z

詳細

抄録

An optical waveguide sensor structure, i.e. a coupling-wave structure, is presented and analyzed on the basis of a codirectional coupler. Potential uses for absorption-and fluorescence based sensors are theoretically explained by the group index method (D.-K. Qing, X-.M-. Chen, K. Itoh, M. Murabayashi: J. Lightwave Technol. 14 (1996) 1907). Refractive-index-based sensors were also analyzed. An actual coupling-wave structure was realized by combining the ion-exchange and the sol-gel methods. The coupling-wave structure that provides effective sensing interaction is easy to fabricate and can be used to realize optical waveguide chemical or biological sensors.

責任著者(Corresponding author)