Narrow-Spectral-Linewidth Wavelength-Tunable Laser Diode with Si Wire Waveguide Ring Resonators
Narrow-Spectral-Linewidth Wavelength-Tunable Laser Diode with Si Wire Waveguide Ring Resonators
复制标题
具有硅线波导环形谐振器的窄谱线宽波长可调谐激光二极管
DOI：
10.1143/apex.5.082701
复制
发表时间：
2012
影响因子：
2.3
通讯作者：
Hirohito Yamada
中科院分区：
文献类型：
--
作者：
K. Nemoto;T. Kita;Hirohito Yamada
采用硅线波导环形谐振腔作为外光腔，研制了波长可调谐半导体激光器。包括半导体光放大器在内的光腔面积仅为2.73× 0.89mm ~ 2，约为氧氮化硅材料的1/5。获得了覆盖光通信波长范围的整个L波段的约44 nm波长调谐操作。此外，通过优化外光腔的设计，获得了窄于100 kHz的光谱线宽。窄谱线宽度的可调谐半导体激光器适合作为数字相干光传输系统的光源。
We fabricated wavelength-tunable laser diodes with Si wire waveguide ring resonators as an external optical cavity. The footprint of the optical cavity including the semiconductor optical amplifier is as small as 2.73×0.89 mm2, which is about 1/5 of those made of silicon oxinitride material. About 44-nm-wavelength tuning operation, which covers the entire L-band of the optical communication wavelength range, was obtained. Furthermore, spectral linewidth narrower than 100 kHz was obtained by optimizing the design of the external optical cavity. The tunable laser diodes with narrow spectral linewidth are suitable as light sources for digital coherent optical transmission systems.