Ultra-wideband optical diode based on photonic crystal 90° bend and directional coupler

被引：6

作者：

Lu, Jin ^{[1
]}

Ren, Hongliang ^{[1
,2
]}

Guo, Shuqin ^{[1
]}

Gu, Dongyuan ^{[1
]}

Wen, Hao ^{[1
]}

Qin, Yali ^{[1
]}

Zhou, Shouli ^{[1
]}

Hu, Weisheng ^{[2
]}

Jiang, Chun ^{[2
]}

机构：

[1] Zhejiang Univ Technol, Coll Informat Engn, Hangzhou 310023, Zhejiang, Peoples R China

[2] Shanghai Jiao Tong Univ, State Key Labs Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2014年 / 12卷 / 10期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

WAY EDGE MODE;

D O I：

10.3788/COL201412.102301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose an ultra-wideband optical diode device based on two-dimensional square-lattice photonic crystals. For the device, the odd mode is completely transmitted in one direction and converted to the fundamental even mode, but completely reflected in the other direction. The operation bandwidth of the device is preserved within a rather wide range of frequencies, which is over 6.5% of the central frequency. A directional coupler and 90 degrees bend are utilized as the composite function device with mode filter and mode converter. It is possible that the photonic crystal device can help to construct on-chip optical logical devices and benefit greatly to the optical systems with multiple spatial modes.

引用

页数：4

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