Abstract
A new method based on introducing a photonic crystal fiber (PCF) in-line interferometer for hydrogen sensing is demonstrated. One end-face of the PCF and part of the outer-face of the fiber are plated with a thin palladium film by magnetron sputtering, while the other end is connected to the optical path. Therefore, a set of reflection-type all-fiber hydrogen sensor system is accomplished. Hydrogen concentration from 0% to 5% was detected in the experiment and the related interferometric resonant wavelength-shift was recorded. The maximum wavelength shift is over 1.2 nm. The whole system has an all-fiber optical path without any bulk-optic components, and this design obtains a high level of integration, a high stability, and low production costs.
Original language | English |
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Article number | 6677519 |
Pages (from-to) | 1133-1136 |
Number of pages | 4 |
Journal | IEEE Sensors Journal |
Volume | 14 |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 2014 |
Externally published | Yes |
Keywords
- hydrogen sensor
- Photonic crystal fiber in-line interferometer
- reflective
- wavelength-shift
ASJC Scopus subject areas
- Instrumentation
- Electrical and Electronic Engineering