Details

Autor(en) / Beteiligte

• Elsmann, Tino
• Lorenz, Adrian
• Yazd, Nazila Safari
• Habisreuther, Tobias
• Dellith, Jan
• Schwuchow, Anka
• Bierlich, Jörg
• Schuster, Kay
• Rothhardt, Manfred
• Kido, Ladislav
• Bartelt, Hartmut

Titel

High temperature sensing with fiber Bragg gratings in sapphire-derived all-glass optical fibers

Ist Teil von

• Optics express, 2014-11, Vol.22 (22), p.26825-26833

Ort / Verlag

United States

Erscheinungsjahr

2014

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A structured sapphire-derived all-glass optical fiber with an aluminum content in the core of up to 50 mol% was used for fiber Bragg grating inscription. The fiber provided a parabolic refractive index profile. Fiber Bragg gratings were inscribed by means of femtosecond-laser pulses with a wavelength of 400 nm in combination with a two-beam phase mask interferometer. Heating experiments demonstrated the stability of the gratings for temperatures up to 950°C for more than 24 h without degradation in reflectivity.