All-optical fiber hydrogen sensor based on annealed Pd-Au sensing nanolayers

D. Monzón-Hernández; D. Luna-Moreno; Joel Villatoro; G. Badenes

doi:10.1117/12.738424

2 July 2007 All-optical fiber hydrogen sensor based on annealed Pd-Au sensing nanolayers

D. Monzón-Hernández, D. Luna-Moreno, Joel Villatoro, G. Badenes

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66191F (2007) https://doi.org/10.1117/12.738424
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

We report an all-optical fiber hydrogen sensor based on absorption changes of evanescent fields caused by an annealed Pd/Au thin film. The sensor consists of a small piece of standard single-mode fiber (SMF) coated with a Pd/Au thin film sandwiched between two multimode fibers (MMFs). Due to core diameter mismatch the SMF cladding guides light. When the device is exposed to hydrogen the layer refractive index diminishes and causes attenuation changes of the evanescent fields. Adding gold to palladium allows the fabrication of fast, durable, and reliable sensors suitable for the detection of hydrogen concentration below the critical 4%.

Citation Download Citation

D. Monzón-Hernández, D. Luna-Moreno, Joel Villatoro, and G. Badenes "All-optical fiber hydrogen sensor based on annealed Pd-Au sensing nanolayers", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66191F (2 July 2007); https://doi.org/10.1117/12.738424

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