Dependence on Grating Length of Transmission Spectra of Long-Period Fiber Bragg Grating

Sato, Yusuke; Yokouchi, Takashi; Iwata, Hiroji; Suzaki, Yosihumi; Ejima, S.

doi:10.2472/jsms.59.239

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2018

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“…Furthermore, theoretical L R values were calculated, and then compared with the experimental results. The L R change can be expressed as (1) and (2), based on reference [1,10]:…”

Section: Introductionmentioning

confidence: 99%

Loss peak adjustment of long period fiber grating fabricated with CO<sub>2</sub> laser by applying tension

Murakami

Koyama

Kusama

et al. 2018

IEICE Electron. Express

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This study aims to propose a method for adjusting loss peak in the spectrum of long period fiber grating fabricated with CO 2 laser by applying tension with some weight to make the loss peak suitable for a multi-point temperature sensor under a high temperature environment. This method could achieve an increase of 5.3 dB in the value of loss peak by loading the fiber with a weight of 150 g. Furthermore, it was found that the method had a minimal influence on the temperature sensitivity of the long period fiber grating in the range varying from room temperature to 800°C.

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“…Furthermore, theoretical L R values were calculated, and then compared with the experimental results. The L R change can be expressed as (1) and (2), based on reference [1,10]:…”

Section: Introductionmentioning

confidence: 99%