| Autor: |
Sergei Mikhailov, Anne Matthes, Jörg Bierlich, Jens Kobelke, Katrin Wondraczek, Francis Berghmans, Thomas Geernaert |
| Přispěvatelé: |
Mechanics of Materials and Constructions, Faculty of Engineering, Applied Physics and Photonics, Brussels Photonics Team, IR Academic Unit |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Optics express. 30(11) |
| ISSN: |
1094-4087 |
| Popis: |
We demonstrate distributed optical fiber-based pressure measurements with sub-bar pressure resolution and 1 m spatial resolution over a ∼100 m distance using a phase-sensitive optical time-domain reflectometry technique. To do so, we have designed a novel highly birefringent microstructured optical fiber that features a high pressure to temperature sensitivity ratio, a high birefringence and a mode field diameter that is comparable to that of conventional step-index single mode fibers. Our experiments with two fibers fabricated according to the design confirm the high polarimetric pressure sensitivities (−62.4 rad×MPa−1×m−1 and −40.1 rad×MPa−1×m−1) and simultaneously low polarimetric temperature sensitivities (0.09 rad×K−1×m−1 and 0.2 rad×K−1×m−1), at a wavelength of 1550 nm. The fiber features a sufficiently uniform birefringence over its entire length (2.17×10−4 ± 7.65×10−6) and low propagation loss (∼3 dB/km), which allows envisaging pressure measurements along distances up to several kilometers. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
