Narrow-spectral-linewidth silicon photonic wavelength-tunable laser with highly asymmetric Mach-Zehnder interferometer

被引：23
|
作者：
Tang, Rui [1 ]
Kita, Tomohiro [1 ]
Yamada, Hirohito [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Commun Engn, Sendai, Miyagi 980, Japan
来源：
OPTICS LETTERS | 2015年 / 40卷 / 07期
关键词：
D O I：
10.1364/OL.40.001504
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a narrow-spectral-linewidth silicon photonic wavelength-tunable laser with a novel external wavelength-tunable filter, which consists of two silicon ring resonators with different circumferences and a highly asymmetric Mach-Zehnder interferometer (MZI), the two optical paths of which have significantly different lengths. Calculations and experimental results indicated that the gain difference between longitudinal modes was increased by the highly asymmetric MZI. Consequently, a narrow spectral linewidth of 12 kHz and a stable single-mode oscillation were obtained. (C) 2015 Optical Society of America
引用
收藏
页码：1504 / 1507
页数：4
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