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Torsion, Refractive Index, and Temperature Sensors Based on An Improved Helical Long Period Fiber Grating

The sensors measuring torsion, refractive index, and temperature are demonstrated, based on an improved helical long-period fiber gratings (HLPFG), in which the refractive-index and torsion sensitivity were significantly enhanced by reducing the grating diameter. This was achieved using the velocity difference between two translational stages as the optical fiber was heated by a hydrogen-oxygen flame. As the grating diameter decreases from 109 to 85 μm, the sensor's refractive-index sensitivity at RI of 1.444 increases from -1210.20 to -3133.80 nm/RIU, and torsion sensitivity was enhanced from -245.80 to -942.77 nm/(rad/mm), respectively. Moreover, the sensor's temperature sensitivity was measured to be about 77.17 pm/°C. Hence, such a sensor based on improved HLPFG could have great potential in sensing applications.

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Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.38 No.8 April 15 2020

No. Panggil

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Penerbit

: .,

Deskripsi Fisik

p. 2504 - 2510

Bahasa

English

ISBN/ISSN

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Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

FIBER OPTICS SENSORS
FIBER OPTICS COMPONENTS
HELICAL LONG PERIOD FIBER GRATINGS

Info Detail Spesifik

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Pernyataan Tanggungjawab

Yuanyuan Zhao, Shen Liu, Junxian Luo, Yanping Chen, Cailing Fu, Cong Xiong, Ying Wang, Shouyong Jing, Zhiyong Bai, Changrui Liao, Yiping Wang

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