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Nonlinear estimation of ring-down time for a Fabry-Perot optical cavity

kallapur, Abhijit; Boyson, Toby K.; Petersen, Ian; Harb, Charles


This paper discusses the application of a discrete-time extended Kalman filter (EKF) to the problem of estimating the decay time constant for a Fabry-Perot optical cavity for cavity ring-down spectroscopy (CRDS). The data for the estimation process is obtained from a CRDS experimental setup in terms of the light intensity at the output of the cavity. The cavity is held in lock with the input laser frequency by controlling the distance between the mirrors within the cavity by means of a...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.19.006385
Access Rights: Open Access


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