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Proceedings Paper

High contrast ultrashort pulse written transmission filter based on Moiré fiber grating
Author(s): Ria G. Krämer; Bennet Fischer; Christian Matzdorf; Thorsten A. Goebel; Daniel Richter; Roberto Morandotti; Stefan Nolte
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Paper Abstract

We present narrowband and high contrast ultrashort pulse written phase shifted fiber Bragg gratings (FBG). The phase shift in the fiber was implemented by overlaying two spectrally slightly differing gratings, resulting in a Moiré grating. They were realized using the phase mask scanning technique, providing a reliable and reproducible inscription process. The different grating periods were implemented by controlling the applied strain on the fiber during inscription which was monitored spectrally. We present the results of single and multiple phase shift gratings with passband bandwidths as low as 4 pm and contrasts as high as 42 dB.

Paper Details

Date Published: 2 March 2020
PDF: 7 pages
Proc. SPIE 11270, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX, 112700V (2 March 2020); doi: 10.1117/12.2543817
Show Author Affiliations
Ria G. Krämer, Friedrich-Schiller-Univ. Jena (Germany)
Bennet Fischer, Institut National de la Recherche Scientifique (Canada)
Christian Matzdorf, Friedrich-Schiller-Univ. Jena (Germany)
Thorsten A. Goebel, Friedrich-Schiller-Univ. Jena (Germany)
Daniel Richter, Friedrich-Schiller-Univ. Jena (Germany)
Roberto Morandotti, Institut National de la Recherche Scientifique (Canada)
Univ. of Electronic Science and Technology of China (China)
ITMO Univ. (Russian Federation)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)

Published in SPIE Proceedings Vol. 11270:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX
Peter R. Herman; Michel Meunier; Roberto Osellame, Editor(s)

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