We studied a fiber-optic temperature sensor based on the interference between LP and LP modes of a circularly symmetric few mode fiber. 01 02 Theoretical analysis predicting the sensitivity of such a sensor is presented; the predictions are in excellent agreement with the experimentally measured v
Fiber optic pressure sensor based on a single-mode fiber F–P cavity
✍ Scribed by Haiyan Chen
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 428 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0263-2241
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✦ Synopsis
In this paper, we propose and experimentally demonstrate a pressure sensor based on birefringent single-mode fiber F-P cavity using optical heterodyne. The proof of concept device consists of a light source, a polarizer controller, a modulator, a RF generator, a single-mode fiber Fabry-Perot cavity, a strain inspector, an erbium doped fiber amplifier, a filter, a polarizer, an optical spectrum analyzer, and a digital communication analyzer. The dynamic range of the proposed sensor is explored. The results demonstrate the new concept of fiber pressure sensors and the technical feasibility for pressure measurements.
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