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

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.

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Bibliographische Detailangaben
Hauptverfasser:	Chow, J.H., Littler, I.C.M., McClelland, D.E., Gray, M.B.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Australia Bragg gratings Capacitive sensors Laser noise Laser theory Laser tuning Optical resonators Phase detection Phase frequency detector Resonance
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Beschreibung
Zusammenfassung:	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.
DOI:	10.1109/OFC.2005.192595