By Topic

Photonic crystal fibre based high temperature sensor with three-beam path interference

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 $33
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

7 Author(s)
S. -s. Li ; College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University ; Z. -d. Huang ; X. -s. Song ; S. -y. Zhang
more authors

Photonic crystal fibre (PCF) modal interferometers are widely used for sensing applications. Owing to the intrinsic Mach-Zehnder-like dual-mode interference there is a trade-off between sharp spectral response and wide sensing range. A three-beam path interferometer induced by mode-conversion in a single dual mode PCF end face is experimentally demonstrated. Doubled free spectral range is obtained owing to the three-beam path interference, which is suitable in sensing large index change, wide temperature variation and strong applied pressures. As an example, a temperature sensor with the sensitivity of 8.17 pm/ C is demonstrated ranging from room temperature to 520 C. The mechanism and further improvements of the multi-beam path interferometers are also discussed.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 20 )