A 50Gb/s PAM-4 Retimer-CDR + VCSEL Driver with Asymmetric Pulsed Pre-Emphasis Integrated into a Single CMOS Die
- Resource Type
- Conference
- Authors
- Hu, Shang; Yao, Tingyu; Yin, Bozhi; Song, Chunyu; Zhao, Lei; Wang, Juncheng; Wang, Lei; Bai, Rui; Wang, Xin; Xia, Tao; Peng, Yi; Yao, Binbin; Li, Yuan; Chen, Xuefeng; Pan, Quan; Qi, Nan; Chiang, Patrick Yin
- Source
- 2019 Optical Fiber Communications Conference and Exhibition (OFC) Optical Fiber Communications Conference and Exhibition (OFC), 2019. :1-3 Mar, 2019
- Subject
- Communication, Networking and Broadcast Technologies
Photonics and Electrooptics
Vertical cavity surface emitting lasers
Optical variables measurement
Optical transmitters
Semiconductor device measurement
Modulation
High-speed optical techniques
Optical device fabrication
- Language
A 50 Gb/s PAM-4 Retimer-CDR + VCSEL driver is fully-integrated in a 40nm CMOS process. Measurement results demonstrate wide optical eye openings using a 16GHz bandwidth VCSEL, achieving > 4 dB extinction ratio and < 8 pJ/bit energy efficiency.