By Topic

Design of a Single-Channel Modal Interferometer Waveguide Sensor

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Ronen Levy ; Dept. of Phys. Electron., Tel-Aviv Univ., Tel-Aviv ; Shlomo Ruschin

This paper describes a waveguide sensor design that allows interferometric phase sensing in an optical waveguide without the requirement of a reference leg. The new design is based on two guided modes that interfere by an abrupt discontinuity of the waveguide into a single-mode output. Refractive index changes in the sensed material generate phase changes mainly in the higher mode, with the lower mode used as a reference. Calculated values show sensitivities much higher than single-channel surface plasmon resonance sensors and somewhat lower than dual channel phase sensors in a conventional Mach-Zehnder configuration. Our design allows for a simple, single-channel, compact, highly sensitive, and low attenuation phase sensor. A comprehensive analysis of the role of different design parameters in the performance of the sensor is presented.

Published in:

IEEE Sensors Journal  (Volume:9 ,  Issue: 2 )