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Ultra-sensitive dynamic strain detection by phase-sensitive laser frequency locking to a passive Bragg grating resonator

Chow, Jong; Littler, Ian C M; McClelland, David; Gray, Malcolm


We demonstrate a pico-strain sensing technique by remote interrogation of passive Bragg grating Fabry-Perot resonators, based on the Pound-Drever-Hall technique, used for laser frequency locking and signal extraction. It employs radio-frequency phase modulation to derive error signals.

CollectionsANU Research Publications
Date published: 2005
Type: Conference paper
Source: OFC Technical Digest


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