A 45nm SOI monolithic photonics chip-to-chip link with bit-statistics-based resonant microring thermal tuning
- Resource Type
- Conference
- Authors
- Sun, Chen; Wade, Mark; Georgas, Michael; Lin, Sen; Alloatti, Luca; Moss, Benjamin; Kumar, Rajesh; Atabaki, Amir; Pavanello, Fabio; Ram, Rajeev; Popovic, Milos; Stojanovic, Vladimir
- Source
- 2015 Symposium on VLSI Circuits (VLSI Circuits) VLSI Circuits (VLSI Circuits), 2015 Symposium on. :C122-C123 Jun, 2015
- Subject
- Components, Circuits, Devices and Systems
Photonics and Electrooptics
Power, Energy and Industry Applications
Tuning
Optical transmitters
Modulation
Adaptive optics
Optical receivers
Optical sensors
Optical fiber communication
Optical
Link
Ring
Resonator
Thermal Tuning
- Language
- ISSN
- 2158-5601
2158-5636
A new thermal tuning circuit for optical ring modulators enables demonstration of an optical chip-to-chip link for the first time with monolithically integrated photonic devices in a commercial 45nm SOI process, without any process changes. The tuning circuit uses independent 1/0 level-tracking and 1/0 bit counting to remain resilient against laser self-heating transients caused by non-DC-balanced transmit data. A 30fJ/bit transmitter and 374fJ/bit receiver with 6μA pk-pk photocurrent sensitivity complete the 5Gb/s link. The thermal tuner consumes 275fJ/bit and achieves a 600 GHz tuning range with a heater tuning efficiency of 3.8μW/GHz.