A 2.85 pJ/bit, 52-Gbps NRZ VCSEL Driver with Two-Tap Feedforward Equalization
- Resource Type
- Conference
- Authors
- Valenzuela, Luis A.; Andrade, Hector; Hosseinzadeh, Navid; Maharry, Aaron; Schow, Clint L.; Buckwalter, James F.
- Source
- 2020 IEEE/MTT-S International Microwave Symposium (IMS) Microwave Symposium (IMS), 2020 IEEE/MTT-S International. :209-212 Aug, 2020
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Engineering Profession
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Microwave measurement
Optical variables measurement
Microwave circuits
Energy efficiency
Optical fiber communication
Optical modulation
Vertical cavity surface emitting lasers
optical transceiver
VCSEL
feed-forward equalization
driver
SiGe
56 Gb/s
- Language
- ISSN
- 2576-7216
─We report an energy-efficient vertical cavity surface-emitting laser (VCSEL) driver implemented in a 130 nm SiGe HBT technology. Operation at data rates as high as 60 Gbps is demonstrated with the use of two-tap feed-forward equalizer (FFE) using a differentiator circuit at the output driver stage that eliminates the need for inductors and results in compact area (0.032 mm 2 ). The current contribution of the differentiator produces a trade-off between energy efficiency and bandwidth enhancement. Error-free (BER < 10 −12 ) non-return-to-zero (NRZ) transmission up to 52 Gbps is reported at an efficiency of 2.85 pJ/bit.