Narrow-spectral-linewidth silicon photonic wavelength-tunable laser with highly asymmetric Mach-Zehnder interferometer.
Narrow-spectral-linewidth silicon photonic wavelength-tunable laser with highly asymmetric Mach-Zehnder interferometer.
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DOI：
10.1364/ol.40.001504
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发表时间：
2015-04
期刊：
影响因子：
3.6
通讯作者：
Rui Tang;T. Kita;Hirohito Yamada
中科院分区：
文献类型：
--
作者：
Rui Tang;T. Kita;Hirohito Yamada
本文提出了一种窄带线宽硅光子波长可调谐激光器，该激光器由两个不同周长的硅环形谐振器和一个高度不对称的马赫-曾德尔干涉仪（MZI）组成，其光路长度明显不同。计算和实验结果表明，高度不对称的MZI增加了纵向模间的增益差。因此，获得了12 kHz的窄谱线宽度和稳定的单模振荡。
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.