Inline fiber interference-based refractive-index sensor

Zhenfeng Gong; Xinpu Zhang; Yun Liu; Zigeng Liu; Qingxu Yu; Wei Peng

doi:10.1117/1.OE.53.11.117106

11 November 2014 Inline fiber interference-based refractive-index sensor

Zhenfeng Gong, Xinpu Zhang, Yun Liu, Zigeng Liu, Qingxu Yu, Wei Peng

Author Affiliations +

Funded by: National Natural Science Foundation of China, National Nature Science Foundation of China, Natural Science Foundation of China, National Natural Science Foundation of China (NSFC), Ministry of Education of China

Optical Engineering, Vol. 53, Issue 11, 117106 (November 2014). https://doi.org/10.1117/1.OE.53.11.117106

Abstract

We report two fiber multiple-mode interferometers formed in photonic crystal fiber (PCF). The interference between the core and the cladding modes of a PCF is utilized. We use two methods to form a coupling point, and the cladding modes are excited from the fundamental core mode. One method is blowing compressed gas into the air holes and discharging at the coupling point; the air holes will expand due to gas expansion in the discharge process. Similarly, the other is discharging at the coupling point after the air is exhausted from the air holes, and the holes will contract during the process. By making another coupling point at a different location along the fiber, the proposed PCF interferometers are implemented. Experimental results show that the sensitivities of the two devices can achieve 1.54 and 1.45 nm for a 0.01 refractive index change.

Citation Download Citation

Zhenfeng Gong, Xinpu Zhang, Yun Liu, Zigeng Liu, Qingxu Yu, and Wei Peng "Inline fiber interference-based refractive-index sensor," Optical Engineering 53(11), 117106 (11 November 2014). https://doi.org/10.1117/1.OE.53.11.117106

Published: 11 November 2014

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

Members: $24.00

Non-members: $28.00 ADD TO CART

JOURNAL ARTICLE
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

Interferometers

Cladding

Fiber optics sensors

Brain-machine interfaces

Optical engineering

Photonic crystal fibers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years