Recent Progress in Research on Photonic Crystal Fiber Devices

被引：0
作者：
Yokota, Hirohisa [1 ]
Imai, Yoh [1 ]
机构：
[1] Ibaraki Univ, Coll Engn, Hitachi, Ibaraki 3168511, Japan
来源：
2013 15TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON 2013) | 2013年
关键词：
photonic crystal fiber; polarization-maintaining optical fiber; optical fiber coupler; optical attenuator; CO2; laser;
D O I：
暂无
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：
Recent progress in research on photonic crystal fiber (PCF) devices that are fabricated by air hole state control with CO2 laser irradiation is reviewed. Fabrications of polarization-maintaining PCF couplers (PM-PCFCs) and their coupling characteristics depending on states of air holes are described. The states of air holes in the tapered regions of couplers could be controlled by adjustment of the laser power density in the fusion and the elongation processes. It was demonstrated that the air hole remaining PM-PCFC exhibited polarization-splitting characteristics and that the air hole collapsed PM-PCFC had polarization insensitive coupling characteristics. Fabrications of polarization-maintaining PCF (PM-PCF) optical attenuators by air hole diameter control are also presented. The air hole diameter ratio to pitch of the PM-PCF could be controlled by the laser power adjustment. The desired attenuation could be obtained by the laser power adjustment because the attenuation depended on the air hole ratio.
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页数：4
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