Interferometric inscription of volume Bragg gratings in a commercial high-refractive index glass (S-TIH53) by 400 nm femtosecond (fs) laser pulses

T. Elsmann; A. Hartung; E. Lindner; M. Rothhardt; H. Bartelt

doi:10.1117/12.921787

8 May 2012 Interferometric inscription of volume Bragg gratings in a commercial high-refractive index glass (S-TIH53) by 400 nm femtosecond (fs) laser pulses

T. Elsmann, A. Hartung, E. Lindner, M. Rothhardt, H. Bartelt

Author Affiliations +

Proceedings Volume 8428, Micro-Optics 2012; 84280H (2012) https://doi.org/10.1117/12.921787
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We demonstrate volume Bragg gratings inscribed in S-TIH53 glass. S-TIH53 is in the proper meaning not photosensitive; therefore we used a fs-laser system for the inscription process. The grating structure was formed in a Talbot interferometer and was investigated with help of the external Bragg reflection method. With this method we could measure the reflectivity profile and thereto the size of the grating. To ensure that the generated gratings are no surface or absorption gratings the probes were investigated by a microscope and absorption measurements and heating experiments were done.

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T. Elsmann, A. Hartung, E. Lindner, M. Rothhardt, and H. Bartelt "Interferometric inscription of volume Bragg gratings in a commercial high-refractive index glass (S-TIH53) by 400 nm femtosecond (fs) laser pulses", Proc. SPIE 8428, Micro-Optics 2012, 84280H (8 May 2012); https://doi.org/10.1117/12.921787

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