Phase-shifted Bragg grating inscription in photonic crystal fibers by UV phase mask beam stop technique

Olga Rusyakina; Maria Konstantaki; Stavros Pissadakis; Pawel Mergo; Mariusz Makara; Tigran Baghdasaryan; Hugo Thienpont; Francis Berghmans; Thomas Geernaert

doi:10.1117/12.2556069

14 April 2020 Phase-shifted Bragg grating inscription in photonic crystal fibers by UV phase mask beam stop technique

Olga Rusyakina, Maria Konstantaki, Stavros Pissadakis, Pawel Mergo, Mariusz Makara, Tigran Baghdasaryan, Hugo Thienpont, Francis Berghmans, Thomas Geernaert

Author Affiliations +

Proceedings Volume 11355, Micro-Structured and Specialty Optical Fibres VI; 1135511 (2020) https://doi.org/10.1117/12.2556069
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

There are several techniques available for fabrication of phase-shifted gratings in single mode fibers. Yet, very few studies have examined inscription of such gratings in photonic crystal fibers (PCFs). In this paper, we report what we believe to be the first demonstration of the phase-shifted grating inscription in PCFs using a phase mask and a beam stop. The grating inscription is demonstrated for three hexagonal lattice PCFs with different air-filling fractions. The transmission spectra of the fabricated gratings reveal phase shift resonance peaks with a -3 dB bandwidth between 40 and 80 pm which is up to 4 times narrower than of the resonances of uniform Bragg gratings inscribed in the same fibers.

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Olga Rusyakina, Maria Konstantaki, Stavros Pissadakis, Pawel Mergo, Mariusz Makara, Tigran Baghdasaryan, Hugo Thienpont, Francis Berghmans, and Thomas Geernaert "Phase-shifted Bragg grating inscription in photonic crystal fibers by UV phase mask beam stop technique", Proc. SPIE 11355, Micro-Structured and Specialty Optical Fibres VI, 1135511 (14 April 2020); https://doi.org/10.1117/12.2556069

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