Femtosecond Laser Direct Writing of Turn Around Point Long Period Fiber Gratings Coated with Titanium Dioxide for Improved Sensitivity
Femtosecond Laser Direct Writing of Turn Around Point Long Period Fiber Gratings Coated with Titanium Dioxide for Improved Sensitivity
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Date
2020
Authors
Carlos Duarte Viveiros
De Almeida,JMMM
Luís Carlos Coelho
Vasconcelos,H
João Miguel Maia
Amorim,VA
Pedro Jorge
Paulo Vicente Marques
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Abstract
The fabrication of Turn Around Point Long Period Fiber Grating in standard SMF-28e fibers through femtosecond laser direct writing is demonstrated and its sensing sensitivity is improved by coating the fiber with titanium dioxide through physical vapor deposition. © 2021 The Author(s).