A Novel Electrically Tunable Long-Period Fiber Grating Using a Liquid Crystal Cladding Layer

• Authors: A. Czapla , T. Woliński , E. Nowinowski-Kruszelnicki , W. Bock
• Languages of publication: EN

Abstracts

EN

The main aim of the presented work is the integration of a long-period fiber grating and a liquid crystal into a hybrid structure, in order to develop an innovative fiber optic device controlled by an external electric field. The studied long-period fiber grating was fabricated using UV irradiation in a boron co-doped fiber (PS1250/1500, manufactured by Fibercore). As a liquid crystal we used a typical 5CB nematic liquid crystal. The sensing mechanism of the proposed loss filter relies on long-period fiber grating attenuation bands sensitivity to optical properties of the liquid crystal layer. The results obtained show that the long-period fiber grating with a nanosized liquid crystal layer exhibits one order of magnitude higher electrical sensitivity and a lower level of the voltage control than the long-period fiber grating with a micro-sized liquid crystal layer.

Keywords

EN

42.81.Cn; 42.79.Dj; 42.81.Pa; 42.79.Kr

Discipline

• 42.79.Dj: Gratings(for holographic gratings, see 42.40.Eq)
• 42.81.Cn: Fiber testing and measurement of fiber parameters
• 42.79.Kr: Display devices, liquid-crystal devices(see also 85.60.Pg Display systems)
• 42.81.Pa: Sensors, gyros

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 6
• Pages: 1104-1107

Dates

published

2010-12

Contributors

author

A. Czapla

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland
• Photonics Reaserch Center, Univ. du Québec en Outaouais, Rue Saint-Jean-Bosco 101, J8X 3X7 Gatineau, Quebec, Canada

author

T. Woliński

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland

author

E. Nowinowski-Kruszelnicki

• Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warszawa, Poland

author

W. Bock

• Photonics Reaserch Center, Univ. du Québec en Outaouais, Rue Saint-Jean-Bosco 101, J8X 3X7 Gatineau, Quebec, Canada

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Identifiers

DOI

10.12693/APhysPolA.118.1104