Experimental Demonstration of Frequency Autolocking an Optical Cavity Using a Time-Varying Kalman Filter

Dirk Schutte, S. Z. Sayed Hassen, Kai S. Karvinen, Toby K. Boyson, Abhijit G. Kallapur, Hongbin Song, Ian R. Petersen, Elanor H. Huntington, and Michele Heurs Max Planck Institute for Gravitational Physics (Albert Einstein Institute), and Institut fur Gravitationsphysik, Leibniz Universitat Hannover, Callinstrase 38, 30167 Hannover, Germany School of Engineering and Information Technology, The University of New South Wales, Australian Defence Force Academy, Australian Capital Territory 2600, Australia Department of Electrical and Electronic Engineering, University of Mauritius, Reduit, Mauritius School of Humanities and Social Science, The Chinese University of Hong Kong, Shenzhen 518000, China The Australian National University, College of Engineering & Computer Science, Australian Capital Territory 0200, Australia (Received 8 May 2015; revised manuscript received 2 October 2015; published 13 January 2016)