Photonic Sensors, Volume. 5, Issue 4, 339(2015)
Post-Treatment Techniques for Enhancing Mode-Coupling in Long Period Fiber Gratings Induced by CO2 Laser
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.
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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
Received: Aug. 31, 2015
Accepted: Sep. 10, 2015
Published Online: Jan. 6, 2016
The Author Email: WANG Yiping (ypwang@szu.edu.cn)