SINGLE-PULSE WRITING AND VISUALIZATION OF TYPE II FIBER BRAGG GRATINGS

Varzhel  Sergey  V., Kulikov Andrey Vladimirovich, Viktor V. Zakharov, Vladimir A. Aseev

2012 , VOLUME 12, NUMBER 5 ( September-October )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
D.Sc., Prof.

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SINGLE-PULSE WRITING AND VISUALIZATION OF TYPE II FIBER BRAGG GRATINGS

S. V. Varzhel, A. V. Kulikov, V. . Zakharov, V. A. Aseev

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Abstract

The article presents the results of single-pulse writing of type II fiber Bragg gratings in birefringent optical fiber with elliptical stress cladding by a single KrF excimer laser pulse. Gratings diffraction efficiency induced by a single pulse exceeds 99.9% with a full-width at half maximum about 1 nm. Images of type II fiber Bragg gratings using differential interference contrast method and bright-field microscopy are obtained.

Keywords: fiber Bragg grating, birefringence, phase mask, excimer laser

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