Abstract
With micro- and nano-structured optical fibers, parts-per-million to parts-per-trillion level gas detection has been demonstrated for a range of gases such as methane, acetylene, ethane, carbon monoxide, hydrogen, and oxygen. We review the recent development in optical fiber gas cells and gas detection systems based on direct absorption, photothermal, photoacoustic, and stimulated Raman spectroscopies.
Original language | English |
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Pages (from-to) | 141-157 |
Number of pages | 17 |
Journal | Photonic Sensors |
Volume | 11 |
Issue number | 2 |
DOIs | |
Publication status | Published - Mar 2021 |
Keywords
- Gas sensor
- optical fiber sensor
- micro-structured optical fiber
- nanofiber
- laser spectroscopy