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Experimental Demonstration of In-Loop Intracavity Intensity-Noise Suppression

Sheard, B; Gray, Malcolm; Slagmolen, Bram; Chow, Jong; McClelland, David


Experimental results for intracavity-laser intensity-noise suppression, or "squashing," manifested as reduced fluctuations on the transmitted field photodetector voltage are presented. It is experimentally demonstrated that a rigid optical cavity within the feedback loop is compatible with squashing. The observed closed loop detector noise floor is approximately 16 nVrms/√Hz in the acoustic frequency range (∼100 Hz), well below the quantum limit due to shot noise of 148 nVrms/√Hz. This...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: IEEE Journal of Quantum Electronics
DOI: 10.1109/JQE.2004.841611


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