Photonic Sensors, 2015, 5 (4): 339, 网络出版: 2016-01-06  

Post-Treatment Techniques for Enhancing Mode-Coupling in Long Period Fiber Gratings Induced by CO2 Laser

Post-Treatment Techniques for Enhancing Mode-Coupling in Long Period Fiber Gratings Induced by CO2 Laser
作者单位
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, China
摘要
Two promising post-treatment techniques, i.e. applying tensile strain and rising temperature, are demonstrated to enhance the mode-coupling efficiency of the CO2-laser-induced long period fiber gratings (LPFGs) with periodic grooves. Such two post-treatment techniques can be used to enhance the resonant attenuation of the grating to achieve a LPFG-based filter with an extremely large attenuation and to tailor the transmission spectrum of the CO2-laser-induced LPFG after grating fabrication.
Abstract
Two promising post-treatment techniques, i.e. applying tensile strain and rising temperature, are demonstrated to enhance the mode-coupling efficiency of the CO2-laser-induced long period fiber gratings (LPFGs) with periodic grooves. Such two post-treatment techniques can be used to enhance the resonant attenuation of the grating to achieve a LPFG-based filter with an extremely large attenuation and to tailor the transmission spectrum of the CO2-laser-induced LPFG after grating fabrication.

Xizhen XU, Jian TANG, Jing ZHAO, Kaiming YANG, Cailing FU, Qiao WANG, Shen LIU, Changrui LIAO, Jiarong LIAN, Yiping WANG. Post-Treatment Techniques for Enhancing Mode-Coupling in Long Period Fiber Gratings Induced by CO2 Laser[J]. Photonic Sensors, 2015, 5(4): 339. Xizhen XU, Jian TANG, Jing ZHAO, Kaiming YANG, Cailing FU, Qiao WANG, Shen LIU, Changrui LIAO, Jiarong LIAN, Yiping WANG. Post-Treatment Techniques for Enhancing Mode-Coupling in Long Period Fiber Gratings Induced by CO2 Laser[J]. Photonic Sensors, 2015, 5(4): 339.

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