Correlation method of processing single fiber multimode interferometer (SFMI) signals using a charge coupled device

Yu. N. Kulchin; O. B. Vitrik; A. D. Lantsov

doi:10.1117/12.725808

5 March 2007 Correlation method of processing single fiber multimode interferometer (SFMI) signals using a charge coupled device

Yu. N. Kulchin, O. B. Vitrik, A. D. Lantsov

Author Affiliations +

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65951L (2007) https://doi.org/10.1117/12.725808
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

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 &mgr;m with an accuracy of ~ ±3&mgr;m for typical single-mode fibres with the core diameter 50 &mgr;m.

Citation Download Citation

Yu. N. Kulchin, O. B. Vitrik, and A. D. Lantsov "Correlation method of processing single fiber multimode interferometer (SFMI) signals using a charge coupled device", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65951L (5 March 2007); https://doi.org/10.1117/12.725808

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