Fabrication of long period fiber gratings based on embedded-core hollow optical fiber

Chunying Guan; Xing Zhong; Xiaozhong Tian; Shuqiang Li; Libo Yuan

doi:10.1117/12.2059040

2 June 2014 Fabrication of long period fiber gratings based on embedded-core hollow optical fiber

Chunying Guan, Xing Zhong, Xiaozhong Tian, Shuqiang Li, Libo Yuan

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91572L (2014) https://doi.org/10.1117/12.2059040
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We propose and experimentally demonstrate a novel long period fiber grating (LPFG) in an embedded-core hollow optical fiber (ECHOF). Without the structural deformation of the air hole and the fiber core, the high-quality LPFG can be fabricated within a few scanning cycles by a high-frequency CO2 laser with a low energy density of 0.896J/mm2. The ECHOF LPFG reveals a high temperature sensitivity of 50.2 pm/°C and a low strain sensitivity of 0.4 pm/με. Due to the good performance and easy fabrication, the ECHOF LPFG will be important to develop novel in-fiber devices.

Citation Download Citation

Chunying Guan, Xing Zhong, Xiaozhong Tian, Shuqiang Li, and Libo Yuan "Fabrication of long period fiber gratings based on embedded-core hollow optical fiber", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91572L (2 June 2014); https://doi.org/10.1117/12.2059040

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