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Analysis of iterative phase retrieval approach to optimize amplitude measurement parameters

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3 Author(s)
Sudheer K. Jawla ; Centre de recherché en physique des plasmas, Association Euratom - Confédération Suisse, EPFL, Station 13, Lausanne - 1015, Switzerland ; J. -P. Hogge ; S. Alberti

This paper describes a thorough analysis made with the Iterative error-reduction approach (IERA) for the determination of phase profiles of the output microwave beam of a gyrotron from known amplitudes. Based on theoretical field profiles of 170GHz/2MW coaxial gyrotron, a numerical/statistical approach is used to study the accuracy of Iterative phase retrieval algorithm. Several measurement parameters are optimized to get more accuracy during the infrared measurements of intensity thermograms of the microwave beam.

Published in:

2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics

Date of Conference:

2-9 Sept. 2007