Title
Design Procedure and Fabrication of Reproducible Silicon Vernier Devices for High-Performance Refractive Index Sensing
Abstract
In this paper, we propose a generalized procedure for the design of integrated Vernier devices for high performance chemical and biochemical sensing. In particular, we demonstrate the accurate control of the most critical design and fabrication parameters of silicon-on-insulator cascade-coupled racetrack resonators operating in the second regime of the Vernier effect, around 1.55 mu m. The experimental implementation of our design strategies has allowed a rigorous and reliable investigation of the influence of racetrack resonator and directional coupler dimensions as well as of waveguide process variability on the operation of Vernier devices. Figures of merit of our Vernier architectures have been measured experimentally, evidencing a high reproducibility and a very good agreement with the theoretical predictions, as also confirmed by relative errors even lower than 1%. Finally, a Vernier gain as high as 30.3, average insertion loss of 2.1 dB and extinction ratio up to 30 dB have been achieved.
Year
DOI
Venue
2015
10.3390/s150613548
SENSORS
Keywords
Field
DocType
integrated waveguide sensors,optical sensing,Vernier effect,silicon
Extinction ratio,Resonator,Vernier scale,Waveguide,Optics,Figure of merit,Electronic engineering,Engineering,Insertion loss,Fabrication,Power dividers and directional couplers
Journal
Volume
Issue
ISSN
15
6.0
1424-8220
Citations 
PageRank 
References 
1
0.43
2
Authors
7
Name
Order
Citations
PageRank
Benedetto Troia1113.29
a z khokhar212.80
milos nedeljkovic312.46
s reynolds410.43
youfang hu510.43
g z mashanovich623.20
Vittorio M N Passaro784.89