Abstract
We report a highly sensitive all-fiber hydrogen sensor based on continuous-wave stimulated Raman gain spectroscopy with a hollow-core photonic crystal fiber operating around 1550 nm. A pump-probe configuration is used, in which the frequency difference between the pump and the probe lasers is tuned to the S0(0) transition of para-hydrogen with a Raman shift of 354 cm-1. Preliminary experiments demonstrate a detection limit down to 17 ppm with a 250 s averaging time, and further improvement is possible. The all-fiber configuration operating in the telecommunication wavelength band would enable cost-effective and compact sensors for high sensitivity and high-resolution trace analysis.
| Original language | English |
|---|---|
| Title of host publication | 25th International Conference on Optical Fiber Sensors |
| Publisher | SPIE |
| Volume | 10323 |
| ISBN (Electronic) | 9781510610910 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
| Event | 25th International Conference on Optical Fiber Sensors, OFS 2017 - Jeju, Korea, Republic of Duration: 24 Apr 2017 → 28 Apr 2017 |
Conference
| Conference | 25th International Conference on Optical Fiber Sensors, OFS 2017 |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Jeju |
| Period | 24/04/17 → 28/04/17 |
Keywords
- Gas sensors
- Optical fiber sensors
- Photonic crystal fiber
- Raman spectroscopy
- Stimulated Raman scattering
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
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