학술논문
A 22 Gb/s Directly Modulated Optical Injection-Locked Quantum-Dot Microring Laser Transmitter with Integrated CMOS Driver
Document Type
Conference
Author
Source
2020 IEEE International Symposium on Circuits and Systems (ISCAS) Circuits and Systems (ISCAS), 2020 IEEE International Symposium on. :1-4 Oct, 2020
Subject
Language
ISSN
2158-1525
Abstract
High-speed optical interconnects are a promising solution for the rapidly increasing bandwidth density demands in data center and high-performance computing applications. This paper presents a transmitter that consists of a co-packaged optically injection-locked quantum-dot (QD) microring laser and a 28nm CMOS driver. Optical injection locking provides an effective solution to overcome the inherent low modulation bandwidth (≤ 5 GHz) of the QD microring laser. Further bandwidth extension is provided with the driver's asymmetric 2-tap feed-forward equalizer (FFE) that compensates the laser's non-linear optical dynamics. Combining these techniques allows for a record 22Gb/s operation of an O-band quantum-dot laser heterogeneously integrated in a silicon photonic platform.