Adaptive interferometers using photorefractive crystals and the non-steady-state photoelectromotive force effect

Authors: Bryushinin, M. A.¹; Grattan, K. T. V.²; Kulikov, V. V.¹; Sokolov, I. A.¹

Source: Journal of Modern Optics, Volume 53, Numbers 5-6, March-April 2006 , pp. 857-864(8)

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Abstract:

Results of adaptive interferometers operation based on photorefractive crystals and the effect of the non-steady-state photo-electromotive force are presented. The influence of an external ac electric field on the signal-to-noise ratio in adaptive detectors using the effect of non-steady-state photo-EMF is analysed. The nonresonant and resonant techniques of signal enhancement are considered. It is shown that the gain factor for the signal-to-noise ratio can be as high as 90?dB. The analysis is performed for the material parameters of Bi 12 SiO 20 crystal.

Document Type: Research article

DOI: http://dx.doi.org/10.1080/09500340500443060

Affiliations: 1: A.F. Ioffe Physical Technical Institute, 194021, St. Petersburg, Russia 2: Department of Electrical, Electronic and Information Engineering, City University, Northampton Square London EC1V 0HB, UK

Publication date: 2006-03-01

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