Title :
A novel Mach-Zehnder interferometer based on dual-ARROW structures for sensing applications
Author :
Hsu, Shih-Hsin ; Huang, Yang-Tung
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A novel Mach-Zehnder interferometer (MZI) based on dual antiresonant reflecting optical waveguides (ARROWs) for sensing is proposed. By adjusting the degree of structural symmetry to control the coupling behavior of the dual ARROW, an interferometric sensor without any bending structure can be realized. Operating principles and simulation characteristics of the device are discussed in detail. The refractive-index detection limit of the order of 10-5 is achieved.
Keywords :
Mach-Zehnder interferometers; chemical sensors; integrated optics; optical planar waveguides; optical sensors; refractive index measurement; Mach-Zehnder interferometer; antiresonant reflecting optical waveguides; chemical sensors; coupling behavior; dual ARROW; dual-ARROW structures; integrated optical devices; interferometric sensor; refractive index detection limit; sensing applications; structural symmetry; Biomedical optical imaging; Chemicals; Electromagnetic interference; Electromagnetic waveguides; Optical interferometry; Optical planar waveguides; Optical refraction; Optical sensors; Optical waveguides; Planar waveguides; Integrated optics; interferometry; optical planar waveguides; waveguide couplers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.859435
