Title :
Silicon-nanowire-based optical sensor by using Mach-Zehnder interferometer-coupled microring
Author :
Wang, Jianwei ; He, Sailing ; Dai, Daoxin
Author_Institution :
State Key Lab. for Modern Opt. Instrum., Zhejiang Univ., Hangzhou, China
Abstract :
Mach-Zehnder interferometer-coupled microring is demonstrated for optical sensing for the first time, with a high sensitivity (~111 nm /RIU), a high extinction ratio (>; 26 dB). The MZI-coupled microring sensor still has good performance when the reflective index of the ambient materials largely changes (1 <; n<; 1.538).
Keywords :
Mach-Zehnder interferometers; elemental semiconductors; extinction coefficients; micro-optomechanical devices; microcavities; microsensors; nanophotonics; nanosensors; nanowires; optical sensors; refractive index; silicon; Mach-Zehnder interferometer-coupled microring; Si; extinction ratio; refractive index; silicon-nanowire-based optical sensor; Optical device fabrication; Optical filters; Optical interferometry; Optical resonators; Optical sensors; Silicon; Wavelength measurement;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682539
