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

in: Optics Express (2014)
Lorenz, Adrian; Safari Yazd, Nazila; Habisreuther, Tobias; Dellith, Jan; Schwuchow, Anka; Bierlich, Jörg; Schuster, Kay; Rothhardt, Manfred; Kido, Ladislav; Bartelt, Hartmut; Elsmann, Tino
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.

Third party cookies & scripts

This site uses cookies. For optimal performance, smooth social media and promotional use, it is recommended that you agree to third party cookies and scripts. This may involve sharing information about your use of the third-party social media, advertising and analytics website.
For more information, see privacy policy and imprint.
Which cookies & scripts and the associated processing of your personal data do you agree with?

You can change your preferences anytime by visiting privacy policy.