Nanoimprinted Polymer Micro/Nanofiber Bragg Gratings for High-Sensitivity Strain Sensing

Author

Gu, Fuxing ; Yu, Huakang ; Fang, Wei ; Tong, Limin

Author_Institution

Dept. of Opt. Eng., Zhejiang Univ., Hangzhou, China

Volume

25

Issue

1

fYear

2013

fDate

Jan.1, 2013

Firstpage

22

Lastpage

24

Abstract

By using a simple and low-cost nanoimprinting technique, polymer micro/nanofiber Bragg gratings (MNFBGs) are fabricated with a ~551-nm grating period and a grating depth >;10 dB around 1.5-μm wavelength. As-fabricated MNFBGs also show high compactness to optical fiber systems and large dynamic range. Using a 2.5-μm-wide and 1.4-μm-thick MNFBG, we demonstrate strain sensing with a high sensitivity of -2.5 pm/με.

Keywords

Bragg gratings; fibre optic sensors; micro-optics; microsensors; nanofabrication; nanofibres; nanophotonics; nanosensors; optical fibre fabrication; optical polymers; strain sensors; MNFBG; grating depth; grating period; high-sensitivity strain sensing; nanoimprinted polymer microfiber Bragg gratings; nanoimprinted polymer nanofiber Bragg gratings; nanoimprinting technique; optical fiber systems; size 1.4 mum; size 2.5 mum; Fiber gratings; Gratings; Optical fiber sensors; Optical fibers; Polymers; Fiber Bragg gratings; nanoimprinting; polymer waveguides; strain sensing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2227467

Filename

6353896