We present a Fiber Laser Strain Sensor (FLSS) with spectral resolution equal to or better than 250 pe/(Hz)1/2 at very low frequencies, from 100 mHz to some hundreds Hz. The strain affects the fiber laser emission wavelength, and an imbalanced Mach-Zender Interferometer (MZI) converts wavelength variations into phase-amplitude variations. The answer of the sensor in the time domain has been also analyzed, by applying sinusoidal strain bursts, and nano-strain resolution has been demonstrated.
Fiber laser strain sensor device
R Falciai;C Trono
2007
Abstract
We present a Fiber Laser Strain Sensor (FLSS) with spectral resolution equal to or better than 250 pe/(Hz)1/2 at very low frequencies, from 100 mHz to some hundreds Hz. The strain affects the fiber laser emission wavelength, and an imbalanced Mach-Zender Interferometer (MZI) converts wavelength variations into phase-amplitude variations. The answer of the sensor in the time domain has been also analyzed, by applying sinusoidal strain bursts, and nano-strain resolution has been demonstrated.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
