Dhoore Sören, Roelkens Gunther, Morthier Geert
Opt Lett. 2017 Mar 15;42(6):1121-1124. doi: 10.1364/OL.42.001121.
Device and tuning characteristics of a novel heterogeneously integrated III-V-on-silicon three-section distributed Bragg reflector (DBR) laser are presented. The laser exhibits a continuous wavelength tuning range of more than 12 nm. Thermal tuning is achieved through carrier injection in the passive tuning layer of a III-V tunable twin-guide membrane. Single-mode lasing with a side-mode suppression ratio larger than 30 dB over the entire tuning range is realized through implementation of a sidewall-corrugated silicon-on-insulator waveguide grating as one of the laser mirrors.
本文介绍了一种新型异质集成硅基III-V族三段分布式布拉格反射器（DBR）激光器的器件及调谐特性。该激光器展现出超过12nm的连续波长调谐范围。通过在III-V族可调谐双波导薄膜的无源调谐层中进行载流子注入来实现热调谐。通过采用侧壁波纹绝缘层上硅波导光栅作为激光反射镜之一，在整个调谐范围内实现了边模抑制比大于30dB的单模激射。
