Laboratory setup for fiber Bragg gratings inscription based on Talbot interferometer
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An experimental setup for the fiber Bragg gratings (FBGs) inscription by use of Talbot interferometer has been described in this paper. A KrF excimer laser system Master Oscillator–Power Amplifier CL-7550 (Optosystems Ltd, Russia) was used as the UV radiation source in the experimental setup. In order to control laser beam quality, thus to provide FBGs effective writing, the laboratory setup includes: spectral width control system, based on Fabry–Perot interferometer; laser beam energy distribution control system; monitoring system of laser pulse energy density on the optical fiber; and control system of optical fiber to the laser beam relative position. FBGs of type I inscription results in a single-pulse and multi-pulse modes are presented.
KeywordsTalbot interferometer Fiber Bragg grating KrF excimer laser system Coherence Phase mask
This work has been done at the ITMO University and supported by the Ministry of Education and Science of the Russian Federation (Unique identifier of the Project: RFMEFI57815X0109, Contract No. 14.578.21.0109).
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