光电子学
激光线宽
光子集成电路
材料科学
放大器
光子学
波导管
谐振器
光学
激光器
激光阈值
炸薯条
绝缘体上的硅
集成电路
光放大器
硅光子学
硅
物理
CMOS芯片
电气工程
工程类
作者
Keith A. McKinzie,Cong Wang,Abdullah Al Noman,D. Mathine,Kyunghun Han,Daniel E. Leaird,Gloria E. Hoefler,V. Lal,Fred Kish,Minghao Qi,Andrew M. Weiner
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2021-01-13
卷期号:29 (3): 3490-3490
被引量:12
摘要
We present a monolithic InP-based photonic integrated circuit (PIC) consisting of a widely tunable laser master oscillator feeding an array of integrated semiconductor optical amplifiers that are interferometrically combined on-chip in a single-mode waveguide. We demonstrate a stable and efficient on-chip coherent beam combination and obtain up to 240 mW average power from the monolithic PIC, with 30–50 kHz Schawlow-Townes linewidths and >180 mW average power across the extended C-band. We also explored hybrid integration of the InP-based laser and amplifier array PIC with a high quality factor silicon nitride microring resonator. We observe lasing based on gain from the interferometrically combined amplifier array in an external cavity formed via feedback from the silicon nitride microresonator chip; this configuration results in narrowing of the Schawlow-Townes linewidth to ∼3 kHz with 37.9 mW average power at the SiN output facet. This work demonstrates a new approach toward high power, narrow linewidth sources that can be integrated with on-chip single-mode waveguide platforms for potential applications in nonlinear integrated photonics.
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