Title :
On-Chip Arrayed Waveguide Grating Interrogated Silicon-on-Insulator Microring Resonator-Based Gas Sensor
Author :
Yebo, Nebiyu A. ; Bogaerts, W. ; Hens, Zeger ; Baets, Roel
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium
Abstract :
We demonstrate on-chip interrogation of a silicon-on-insulator microring resonator-based gas sensor with a compact arrayed waveguide grating (AWG) spectrometer. A 200-GHz silicon-on-insulator AWG with strongly overlapping output channels is used to interrogate a microring resonator sensor response for 100-1000 ppm ethanol vapor concentrations. Such an integrated sensor-interrogator approach is presented as an alternative to the current costly and off-chip read-out systems used for ring resonator-based sensors.
Keywords :
arrayed waveguide gratings; detector circuits; gas sensors; integrated optics; micro-optics; optical resonators; readout electronics; silicon-on-insulator; spectrochemical analysis; arrayed waveguide grating spectrometer; ethanol vapor concentration; frequency 200 GHz; gas sensor; integrated sensor interrogator; interrogated silicon-on-insulator microring resonator; microring resonator sensor; off-chip readout systems; on-chip arrayed waveguide grating; Arrayed waveguide gratings; Channel estimation; Ethanol; Films; System-on-a-chip; Temperature measurement; Arrayed waveguide grating (AWG); gas sensor; integrated; on-chip interrogation; photonic; ring resonator; silicon-on-insulator (SOI); zinc oxide;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2162825
