Mode coupling in hybrid square-rectangular lasers for single mode operation

被引：44
作者：
Ma, Xiu-Wen
Huang, Yong-Zhen [1 ]
Yang, Yue-De
Xiao, Jin-Long
Weng, Hai-Zhong
Xiao, Zhi-Xiong
机构：
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2016年 / 109卷 / 07期
基金：
中国国家自然科学基金;
关键词：
UNIDIRECTIONAL-EMISSION; RESONATOR MICROLASERS; SEMICONDUCTOR-LASERS; MICRODISK LASERS; ON-CHIP; MICROCAVITIES; DEVICES;
D O I：
10.1063/1.4961244
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Mode coupling between a square microcavity and a Fabry-Perot (FP) cavity is proposed and demonstrated for realizing single mode lasers. The modulations of the mode Q factor as simulation results are observed and single mode operation is obtained with a side mode suppression ratio of 46 dB and a single mode fiber coupling loss of 3.2 dB for an AlGaInAs/InP hybrid laser as a 300-mu m-length and 1.5-mu m-wide FP cavity connected to a vertex of a 10-mu m-side square microcavity. Furthermore, tunable single mode operation is demonstrated with a continuous wavelength tuning range over 10 nm. The simple hybrid structure may shed light on practical applications of whispering-gallery mode microcavities in large-scale photonic integrated circuits and optical communication and interconnection. Published by AIP Publishing.
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页数：5
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