Interrogation of in-series double cladding fiber sensor for simultaneous refractive index and temperature measurement

Bo Qi; Fufei Pang; Tingyun Wang; Na Chen; Sujuan Huang; Zhenyi Chen

doi:10.1117/12.919183

19 May 2012 Interrogation of in-series double cladding fiber sensor for simultaneous refractive index and temperature measurement

Bo Qi, Fufei Pang, Tingyun Wang, Na Chen, Sujuan Huang, Zhenyi Chen

Author Affiliations +

Proceedings Volume 8376, Photonic Microdevices/Microstructures for Sensing IV; 83760F (2012) https://doi.org/10.1117/12.919183
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

An interrogation scheme for an in-series double cladding fiber (DCF) sensor is proposed and demonstrated, which can be used for simultaneous refractive index (RI) and temperature measurement. It utilizes two commercial distributed feedback lasers to match two cascade DCF sensors which have two band-rejected filtering spectra at different wavelengths. The two lasers were intensity modulated by different frequencies and demodulated by a lock-in amplifier. Experimental results indicated that a resolution of ±2×10^-5 in RI and ±1.2°Cin temperature were achieved. Based on the simple and low cost interrogation scheme, the dual parameters sensor system will find potential applications in chemical sensors and biosensors.

Citation Download Citation

Bo Qi, Fufei Pang, Tingyun Wang, Na Chen, Sujuan Huang, and Zhenyi Chen "Interrogation of in-series double cladding fiber sensor for simultaneous refractive index and temperature measurement", Proc. SPIE 8376, Photonic Microdevices/Microstructures for Sensing IV, 83760F (19 May 2012); https://doi.org/10.1117/12.919183

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available