A new methane sensor based on compound film-coated photonic crystal fiber and Sagnac interferometer with higher sensitivity
A modified D-shaped photonic crystal fiber (PCF) based on Sagnac interferometer is proposed for methane concentration sensing. Two ultra-large air holes with methane-sensitive film are distributed horizontally in the PCF to shorten response time. Besides, a defect hole is introduced into the fiber c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-12-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379719324982 |