Investigation of long term stability of arc-induced gratings heat treated at high temperatures

Gaspar Rego; Paulo Caldas; Oleg Ivanov; José Luís Santos

doi:10.1117/12.866359

8 September 2010 Investigation of long term stability of arc-induced gratings heat treated at high temperatures

Gaspar Rego, Paulo Caldas, Oleg Ivanov, José Luís Santos

Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76530G (2010) https://doi.org/10.1117/12.866359
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal

Abstract

A long-period grating written in the SMF-28 fiber was heat treated at 1000 °C for 15 days. The spectrum of the grating shifted to longer wavelengths and the amplitude of the cladding mode resonances decreased as a result of structural relaxation. The background loss increased considerably for time longer than 200 h, and this loss is caused by devitrification of the fiber.

Citation Download Citation

Gaspar Rego, Paulo Caldas, Oleg Ivanov, and José Luís Santos "Investigation of long term stability of arc-induced gratings heat treated at high temperatures", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76530G (8 September 2010); https://doi.org/10.1117/12.866359

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