Title :
Coupled-resonator-optical-waveguide (CROW)-based on-chip sensors with multi-pixel detection using all-silicon sub-bandgap photodetectors
Author :
Yu Li ; Poon, Andrew W.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China
Abstract :
We propose a coupled-resonator-optical-waveguide-based sensor with multi-pixel detection using all-silicon sub-bandgap photodetectors at 1550 nm. Our proof-of-concept experiments of a PIN-diode-integrated three-microring CROW demonstrate sensing a minimum effective refractive index change of 2×10-5.
Keywords :
elemental semiconductors; integrated optoelectronics; micro-optomechanical devices; micromechanical resonators; microsensors; optical resonators; optical sensors; optical waveguides; p-i-n photodiodes; photodetectors; refractive index; silicon; PIN-diode-integrated three-microring coupled-resonator-optical-waveguide; Si; all-silicon subbandgap photodetectors; coupled-resonator-optical-waveguide-based on-chip sensors; multipixel detection; refractive index; wavelength 1550 nm; Optical resonators; Optical sensors; Optical waveguides; PIN photodiodes; Sensitivity;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
