Optical mode switch based on multimode interference couplers

被引：15
|
作者：
Xiao, Huifu [1 ,2 ]
Deng, Lin [1 ,2 ]
Zhao, Guolin [1 ,2 ]
Liu, Zilong [1 ,2 ]
Meng, Yinghao [1 ,2 ]
Guo, Xiaonan [1 ,2 ]
Liu, Guipeng [1 ,2 ]
Liu, Su [1 ,2 ]
Ding, Jianfeng [3 ]
Tian, Yonghui [1 ,2 ]
机构：
[1] Lanzhou Univ, Sch Phys Sci & Technol, Inst Microelect, Lanzhou 730000, Gansu, Peoples R China
[2] Lanzhou Univ, Sch Phys Sci & Technol, MOE, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China
[3] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
来源：
JOURNAL OF OPTICS | 2017年 / 19卷 / 02期
基金：
中国国家自然科学基金;
关键词：
optical mode switch; integrated optical devices; multimode interference couplers; WAVE-GUIDES; MICRORING RESONATORS; PHASE-SHIFTER; SILICON; WAVELENGTH; CHIP; CONVERSION; DEVICES; DESIGN; FIBERS;
D O I：
10.1088/2040-8986/19/2/025802
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we propose an optical mode switch based on two cascaded multimode interference (MMI) couplers. After a fundamental mode divided into two equal-power fundamental modes in the first MMI coupler, the thermo-optic effect is employed to modulate the phase of the two fundamental modes before directed to the next MMI for the purpose of mode switching. By adjusting the electric signals applied to the modulation arms, the proposed device can implement mode switching in three states: (a) one first-order and two fundamental modes simultaneously output, (b) one first-order mode output, and (c) two fundamental modes output. As a result, the simulated excess losses are -0.29 dB, -0.10 dB, and -0.63 dB, respectively.
引用
收藏
页数：6
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