Thermal stress modification in regenerated fiber Bragg grating via manipulation of glass transition temperature based on CO2-laser annealing

被引：19

作者：

Lai, Man-Hong ^{[1
]}

Lim, Kok-Sing ^{[1
]}

Gunawardena, Dinusha S. ^{[1
]}

Yang, Hang-Zhou ^{[2
]}

Chong, Wu-Yi ^{[1
]}

Ahmad, Harith ^{[1
]}

机构：

[1] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia

[2] NW Univ Xian, Sch Phys, Xian 710069, Shaanxi, Peoples R China

来源：

OPTICS LETTERS | 2015年 / 40卷 / 05期

关键词：

D O I：

10.1364/OL.40.000748

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we have demonstrated thermal stress relaxation in regenerated fiber Bragg gratings (RFBGs) by using direct CO2-laser annealing technique. After the isothermal annealing and slow cooling process, the Bragg wavelength of the RFBG has been red-shifted. This modification is reversible by re-annealing and rapid cooling. It is repeatable with different cooling process in the subsequent annealing treatments. This phenomenon can be attributed to the thermal stress modification in the fiber core by means of manipulation of glass transition temperature with different cooling rates. This finding in this investigation is important for accurate temperature measurement of RFBG in dynamic environment. (C) 2015 Optical Society of America

引用

页码：748 / 751

页数：4

共 14 条

[1] Effect of CO2 Laser Annealing on Stress Applying Parts Contributing Toward Birefringence Modification in Regenerated Grating in Polarization Maintaining Fiber
Lai, Man-Hong
Lim, Kok-Sing
Islam, Md. Rajibul
Gunawardena, Dinusha S.
Yang, Hang-Zhou
Ahmad, Harith
IEEE PHOTONICS JOURNAL, 2015, 7 (05):
[2] Erbium-doped fiber ring laser sensor for high temperature measurements based on a regenerated fiber Bragg grating
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[4] High-Temperature Fiber Laser Sensing Based on Low-Reflectivity Regenerated Fiber Bragg Grating and Saturable Absorber
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[5] Theory analysis of novel fiber Bragg grating temperature compensated method based on thermal stress
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[6] Analysis of thermal stress in soda-lime glass heated by CO2-laser
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Song, Yun
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[8] High-sensitivity temperature-independent strain sensor based on a long-period fiber grating with a CO2-laser engraved rotary structure
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Rao, Y. J.
Song, Y.
Chiang, K. S.
19TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, PTS 1 AND 2, 2008, 7004
[9] High-Temperature Annealing Behaviors of CO2 Laser Pulse-Induced Long-Period Fiber Grating in a Photonic Crystal Fiber
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[10] An Improved Metal-Packaged Strain Sensor Based on A Regenerated Fiber Bragg Grating in Hydrogen-Loaded Boron-Germanium Co-Doped Photosensitive Fiber for High-Temperature Applications
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