A novel scheme for distributed Brillouin sensing based on differential pump-width pair Brillouin optical time-domain analysis (DPP-BOTDA) with balanced detection of Brillouin gain is proposed and demonstrated. Compared with standard DPP-BOTDA, the proposed method allows us to reduce the measurement time and simultaneously improve the accuracy in Brillouin frequency shift estimation. Experimental results, carried out at 10-cm spatial resolution, demonstrate the effectiveness of the proposed method.
High-Spatial Resolution DPP-BOTDA by Real-Time Balanced Detection
Bernini Romeo
2014
Abstract
A novel scheme for distributed Brillouin sensing based on differential pump-width pair Brillouin optical time-domain analysis (DPP-BOTDA) with balanced detection of Brillouin gain is proposed and demonstrated. Compared with standard DPP-BOTDA, the proposed method allows us to reduce the measurement time and simultaneously improve the accuracy in Brillouin frequency shift estimation. Experimental results, carried out at 10-cm spatial resolution, demonstrate the effectiveness of the proposed method.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.
