Silica-Clad Silicon Photonic Crystal Waveguides for Wideband Dispersion-Free Slow Light

被引：38

作者：

Tamura, Takuya ^{[1
]}

Kondo, Keisuke ^{[1
]}

Terada, Yosuke ^{[1
]}

Hinakura, Yosuke ^{[1
]}

Ishikura, Norihiro ^{[1
]}

Baba, Toshihiko ^{[1
]}

机构：

[1] Yokohama Natl Univ, Dept Elect & Comp Engn, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2015年 / 33卷 / 14期

关键词：

Mach-Zehnder modulator; photonic band; photonic crystal; silica clad; silicon photonics; slow light; NONLINEAR ENHANCEMENT; SYSTEMATIC DESIGN;

D O I：

10.1109/JLT.2015.2420685

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：

We comprehensively calculated the photonic bands of the waveguide modes in practical lattice-shifted photonic crystal waveguides, which are completely cladded by silica. We assumed various lattice shifts and found that the shift of the second rows and the mixed shift of the first and third rows along the waveguide generate low-dispersion slow light with group indices of 34-36, which is higher than those with a conventional shift of the third rows, maintaining a wide bandwidth over 10 nm at telecom wavelengths. We fabricated the waveguides using a CMOS-compatible process and confirmed correspondence with the calculation results. We also compared 25-Gb/s photonic crystal slow light Mach-Zehnder modulators and confirmed the improvement of the modulation efficiency by second-row shifts.

引用

页码：3034 / 3040

页数：7

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