Title :
Development of silicon photonics dual disks resonators as chemical sensors
Author :
Bo Li ; ChongPei Ho ; Chengkuo Lee
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
This paper reports a novel whispering gallery mode photonic dual-disk resonator (DDR) with enhanced quality factors. The second disk with the same dimension as the primary disk enhances the coupling efficiency of the bus waveguide and the disk resonators. The compact disk design brings the possibilities of smaller device dimension and large integration of optical circuits on a chip. The measured result shows 25 nm of free spectrum range (FSR) and the data has a good agreement with three dimensional (3-D) finite difference time domain (FDTD) simulation results. Chemical index sensing is demonstrated with a sensing opening hole filled with droplet of different liquid cladding.
Keywords :
Q-factor; chemical sensors; claddings; elemental semiconductors; finite difference time-domain analysis; integrated optoelectronics; optical resonators; optical sensors; silicon; whispering gallery modes; 3D FDTD simulation; 3D finite difference time domain; DDR; FSR; Si; bus waveguide; chemical index sensor; compact disk design; coupling efficiency enhancement; free spectrum range; liquid cladding; optical circuit integration; quality factor; sensing opening hole; silicon photonics dual disk resonator development; whispering gallery mode photonic; Indexes; Liquids; Optical resonators; Optical sensors; Optical waveguides; Q-factor; Dual-disk resonator; Index Sensor; Whispering gallery mode;
Conference_Titel :
Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP), 2014 IEEE Ninth International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4799-2842-2
DOI :
10.1109/ISSNIP.2014.6827697