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Author Kulchin, Yurii N. ♦ Vitrik, O. B. ♦ Lantsov, A. D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ACCURACY ♦ CHARGE-COUPLED DEVICES ♦ CORRELATIONS ♦ DEFORMATION ♦ INTERFERENCE ♦ INTERFEROMETERS ♦ NONLINEAR PROBLEMS ♦ OPTICAL FIBERS ♦ PROCESSING ♦ SIGNALS ♦ WAVEGUIDES ♦ FIBERS ♦ MEASURING INSTRUMENTS ♦ SEMICONDUCTOR DEVICES
Abstract The correlation method for processing signals from a single-fibre multimode interferometer by using a digital charge-coupled device is studied experimentally and theoretically. Optimal conditions are determined for recording multimode interference patterns with charge-coupled devices. It is found that the nonlinearity of characteristics of such devices affects the results of correlation measurements. The method for eliminating this influence is proposed. The correlation method considered in the paper allows one to measure a linear deformation of the interferometer within 0-80 {mu}m with an accuracy of {approx}{+-}3 {mu}m for typical multi-mode fibres with the core diameter 50 {mu}m. (optical fibres and waveguides)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2006-04-30
Publisher Place United States
Journal Quantum Electronics
Volume Number 36
Issue Number 4


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