Single-polarization photonic crystal fiber filter composed of elliptical gold films

被引：3
|
作者：
Ding, Yifeng [1 ]
Liu, Chao [1 ]
Sun, Yudan [1 ]
Wang, Famei [1 ]
Lin, Yang [1 ]
Liu, Qiang [1 ]
Sun, Tao [2 ]
Chu, Paul K. [3 ,4 ,5 ]
机构：
[1] Northeast Petr Univ, Sch Elect Sci, Daqing, Peoples R China
[2] MIT, Media Lab, Cambridge, MA 02139 USA
[3] City Univ Hong Kong, Dept Phys, Kowloon, Peoples R China
[4] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Peoples R China
[5] City Univ Hong Kong, Dept Biomed Engn, Kowloon, Peoples R China
来源：
OPTICAL ENGINEERING | 2020年 / 59卷 / 07期
关键词：
single-polarization filter; surface plasmon resonance; confinement loss; cross-talk; OPTICAL-PROPERTIES; SPLITTER; DESIGN;
D O I：
10.1117/1.OE.59.7.076103
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A metallic photonic crystal fiber (PCF) filter based on surface plasmon resonance is designed and investigated by the full-vector finite-element method. The inner wall of the air holes in the PCF is coated with gold layers of different thicknesses. The x-polarized and y-polarized confinement losses of the core mode are as high as 1920.36 dB/cm and as low as 3.29 dB/cm at 1310 nm, respectively. For a fiber length of 1000 mu m, the crosstalk of the filter is 1665.14 dB at 1310 nm and the available optical bandwidth is 779 nm. The results show that the PCF filter has excellent prospect in optical information processing. (C) 2020 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：10
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