Prestressed Fiber Bragg Grating With High Temperature Stability

被引：31

作者：

Li, Yuhua ^{[1
]}

Yang, Minwei ^{[2
]}

Liao, Changrui ^{[2
]}

Wang, Dongning ^{[2
]}

Lu, Jian ^{[3
]}

Lu, Peixiang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

[3] Coll Sci & Engn City Univ, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2011年 / 29卷 / 10期

关键词：

Gratings; temperature; ultrafast processes in fibers; THERMAL-STABILITY; LASER-RADIATION; RESIDUAL-STRESS; OPTICAL-FIBER; SILICA FIBER; WRITTEN; SENSOR; BORON;

D O I：

10.1109/JLT.2011.2136323

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A prestressed fiber Bragg grating with high temperature stability has been successfully fabricated by use of 800 nm femtosecond laser pulse irradiation through high-temperature annealing, followed by a rapid cooling treatment. The reflectivity and the resonant wavelength of the grating are maintained constants for more than 26 h in an isothermal measurement up to 1200 degrees C, showing significant improvement over conventional femtosecond laser pulse induced fiber gratings. Longitudinal tension tests demonstrate that the prestressed fiber exhibits enhanced mechanical robustness compared with the residual stress relaxed fiber. This paper reveals that residual stress plays an important role and essentially provides a new solution to enhance the thermal stability of fiber gratings at elevated temperatures and offering high reliability.

引用

页码：1555 / 1559

页数：5

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