A simple Fabry-Perot pressure sensor fabricated on fiber optic tip

Pasquale Di Palma; Daniele Natale; Stefania Campopiano; Agostino Iadicicco

doi:10.1117/12.2236921

30 May 2016 A simple Fabry-Perot pressure sensor fabricated on fiber optic tip

Pasquale Di Palma, Daniele Natale, Stefania Campopiano, Agostino Iadicicco

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 991610 (2016) https://doi.org/10.1117/12.2236921
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

In this work, we demonstrate an extrinsic pressure sensor realized on single mode fiber tip by means of simple fabrication steps and with low-cost instrumentations. The sensing element consists in a Fabry-Perot cavity: one reflecting surface is the end of the optical fiber, precisely cut, and the other one is a metallic diaphragm. Under the action of the external pressure, the metallic diaphragm bends changing the optical cavity length and, consequently, the characteristics of the reflected signal. The holder structure, which allows the alignment of the fiber tip and reflecting diaphragm, consists in a commercial zirconia ferule with external diameter of D_ex = 2.5 mm. Despite its simplicity and cost-effectiveness, the achieved results show performance comparable to more complex and expensive configurations. By using an aluminum plate as reflecting diaphragm. sensitivity ranging in the 70-130pm/mmHg is experimentally.

Citation Download Citation

Pasquale Di Palma, Daniele Natale, Stefania Campopiano, and Agostino Iadicicco "A simple Fabry-Perot pressure sensor fabricated on fiber optic tip", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 991610 (30 May 2016); https://doi.org/10.1117/12.2236921

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