Extremely low-loss terahertz waveguide based on silicon photonic-crystal slab

被引：145
|
作者：
Tsuruda, Kazuisao [1 ]
Fujita, Masayuki [1 ]
Nagatsuma, Tadao [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Toyonaka, Osaka 5608531, Japan
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 25期
关键词：
PROPAGATION; DEFECT; TRANSMISSION; DISPERSION; EMISSION; LINES; ATTENUATION; RESONANCES; MODES;
D O I：
10.1364/OE.23.031977
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We pursued the extremely low loss of photonic-crystal waveguides composed of a silicon slab with high resistivity (20 k Omega-cm) in the terahertz region. Propagation and bending losses as small as <0.1 dB/cm (0.326-0.331 THz) and 0.2 dB/bend (0.323-0.331 THz), respectively, were achieved in the 0.3-THz band. We also developed 1.5-Gbit/s terahertz links and demonstrated an error-free uncompressed high-definition video transmission by using a photonic-crystal waveguide with a length of as long as 50 cm and up to 28 bends thanks to the low-loss properties. Our results show the potential of photonic crystals for application as terahertz integration platforms. (C) 2015 Optical Society of America
引用
收藏
页码：31977 / 31990
页数：14
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