Title :
Compact Spectroscopic Sensor Using an Arrayed Waveguide Grating
Author :
Kodate, K. ; Komai, Y. ; Okamoto, K.
Author_Institution :
Japan Women´´s Univ., Tokyo
fDate :
Aug. 12 2007-July 16 2007
Abstract :
We have previously proposed a compact spectroscopic sensor based on the arrayed waveguide grating (AWG) which makes use of wavelength multi/demultiplexer in a photonic network. We constructed a new planar sensor using a visible AWG for spectroscopic sensing of absorption characteristics with multiple dicing grooves for accommodating a liquid sample. A parabola-shaped sample injection waveguide effectively improves sensitivity because diffraction loss in the direction of its substrate is reduced. In this manuscript, discrimination between chlorophyll a and b as test samples is to be investigated using our AWG spectroscopic sensor.
Keywords :
arrayed waveguide gratings; optical sensors; visible spectroscopy; arrayed waveguide grating; chlorophyll a; chlorophyll b; compact spectroscopic sensor; diffraction loss; multiple dicing grooves; parabola-shaped sample injection waveguide; photonic network; planar sensor; wavelength demultiplexer; wavelength multiplexer; Arrayed waveguide gratings; Biomedical optical imaging; Biosensors; Optical sensors; Optical waveguides; Optoelectronic and photonic sensors; Sensor arrays; Sensor phenomena and characterization; Spectroscopy; Testing; AWG spectroscopic sensor; Environmental indicator; Visible AWG High-wavelength resolution;
Conference_Titel :
Optical MEMS and Nanophotonics, 2007 IEEE/LEOS International Conference on
Conference_Location :
Hualien
Print_ISBN :
978-1-4244-0641-8
DOI :
10.1109/OMEMS.2007.4373889
