A Bragg grating-tuned fiber laser strain sensor system
| Autor: | Serge M. Melle, A.T. Alavie, Shawn E. Karr, Kexing Liu, Raymond M. Measures, Trenton G. Coroy |
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| Rok vydání: | 1993 |
| Předmět: |
Distributed feedback laser
PHOSFOS Optical fiber Materials science business.industry Physics::Optics Bragg's law Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics Fiber Bragg grating law Fiber optic sensor Fiber laser Physics::Atomic Physics Electrical and Electronic Engineering business |
| Zdroj: | IEEE Photonics Technology Letters. 5:263-266 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/68.196025 |
| Popis: | The development of a fiber laser sensor system which permits efficient interrogation of Bragg grating sensors is reported. A tunable erbium doped fiber laser which utilizes a broadband mirror and an intracore Bragg grating reflector in side-pump configuration is described. The wavelength of the laser oscillation is determined by the Bragg grating, which is remotely located and used as a strain sensor. This arrangement is used in conjunction with a passive wavelength demodulation system (WDS) to form a self-contained fiber laser strain sensor system, allowing efficient interrogation of the Bragg sensor. This device provides interrupt-immune sensing of static and dynamic strains with a bandwidth of 13.0 kHz. > |
| Databáze: | OpenAIRE |
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