1.3 mu m fiber grating in a thin-core fiber for LP01-LP11 mode converters and sensing ability

Tong Rongxin; Yang Hangzhou; Lu Kai; Lee Yen-Sian; Lim Kok-Sing; Ahmad Harith; Hu Manli

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1.3 mu m fiber grating in a thin-core fiber for LP01-LP11 mode converters and sensing ability

机译：1.3 mu m光纤光栅在薄芯光纤中，用于LP01-LP模式转换器和传感能力

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We demonstrate an all-fiber structure that can realize LP01 - LP11 mode conversion and twist measurement. It is a thin-core fiber (TCF) grating at a wavelength of 1310 nm cascaded to a short segment of a TCF of a different core size. It is found that the different core size of the TCF between the fiber and the grating has an impact on the excitation of a higher-order mode and mode conversion efficiency. The fiber structure exhibits a good linear response to twisting, strain, and temperature. Depending on the associated mode, the mode intensity and the wavelength for exciting the peaks of the grating have different sensitivities to twisting angle, applied strain, and temperature. These properties can be exploited for simultaneous measurement. (c) 2019 Optical Society of America

机译：我们展示了一种可以实现LP01-LP11模式转换和扭转测量的全纤维结构。它是薄芯光纤（TCF）光栅，其波长为1310nm级联到不同芯尺寸的TCF的短段。发现光纤和光栅之间的TCF的不同芯尺寸对高阶模式和模式转换效率的激发产生了影响。纤维结构对扭曲，应变和温度具有良好的线性响应。根据相关模式，用于激励光栅峰的模式强度和波长对扭曲角度，施加的应变和温度具有不同的敏感性。可以利用这些属性进行同时测量。（c）2019年光学学会

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来源
《Applied optics》 |2019年第16期|共7页
作者
Tong Rongxin; Yang Hangzhou; Lu Kai; Lee Yen-Sian; Lim Kok-Sing; Ahmad Harith; Hu Manli;
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Northwest Univ Sch Phys Xian 710069 Shaanxi Peoples R China;

Northwest Univ Sch Phys Xian 710069 Shaanxi Peoples R China;

Northwest Univ Sch Phys Xian 710069 Shaanxi Peoples R China;

Univ Malaya Photon Res Ctr Kuala Lumpur 50603 Malaysia;

Univ Malaya Photon Res Ctr Kuala Lumpur 50603 Malaysia;

Univ Malaya Photon Res Ctr Kuala Lumpur 50603 Malaysia;

Northwest Univ Sch Phys Xian 710069 Shaanxi Peoples R China;

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1.3 mu m fiber grating in a thin-core fiber for LP01-LP11 mode converters and sensing ability

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