This article reviews in general terms the progress in the field of fiber Bragg gratings and specifically fiber grating related research carried out at the Institute of Optical Research (IOF). IOF has been involved in the field of fiber Bragg gratings since 1993, within both national and European projects.
In this paper we present an experimental evaluation of a quasi-distributed fiber-optic strain and temperature sensor system based on time division multiplexing. The system relies on an advanced dual-core fiber to which a set of Fabry-Perot interferometers is introduced with fiber Bragg gratings used as weak reflectors.
The two major international test methods for evaluation of the image quality of video display terminals are the ISO 9241-3 international standard and the MPR test. In this paper we make an attempt to compare the visual relevance of these two test methods.
This paper describes a fiber-optic interferometer which uses two laser diodes in a modified Mach-Zender configuration for testing aspherical surfaces with phase shift technique and a possibility to implement two wavelength technique. Experimental results show that this type of interferometer is very useful for in-process control directly on a diamond turning machine, the test element still attached to the chuck.
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