Long-period fiber gratings using liquid crystals

Aleksandra Czapla; Tomasz R. Wolinski; Wojtek J. Bock; Edward Nowinowski-Kruszelnicki; Roman Dabrowski; Jan Wojcik

doi:10.1117/12.817933

6 November 2008 Long-period fiber gratings using liquid crystals

Aleksandra Czapla, Tomasz R. Wolinski, Wojtek J. Bock, Edward Nowinowski-Kruszelnicki, Roman Dabrowski, Jan Wojcik

Proceedings Volume 7124, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2008; 712406 (2008) https://doi.org/10.1117/12.817933
Event: Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2008, 2008, Wilga, Poland

Abstract

In this paper, we present a long-period fiber grating (LPFG) with a unique liquid crystal (LC) cladding. The experimental study is focused on achieving external tuning by applying electric fields to influence the spectral properties of LPFGs using LCs for potential applications in photonic sensing and in communications. The LPFGs are fabricated in two types of fibers: single-mode (SM) fiber and photonic crystal fiber (PCF). Their sensitivities when surrounded by nematic LCs mixtures are compared. In addition, the influence of an external electric field on the spectral properties of LPFGs with an "active" LC medium is investigated. We demonstrate a spectral shift, under an external electric field, in the transmission spectrum of the LPFG based on SM fiber with 1294-1b LC mixture serving as the surrounding medium.

Citation Download Citation

Aleksandra Czapla, Tomasz R. Wolinski, Wojtek J. Bock, Edward Nowinowski-Kruszelnicki, Roman Dabrowski, and Jan Wojcik "Long-period fiber gratings using liquid crystals", Proc. SPIE 7124, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2008, 712406 (6 November 2008); https://doi.org/10.1117/12.817933

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