10-Gbps, 5.3-mW Optical Transmitter and Receiver Circuits in 40-nm CMOS

We describe transmitter and receiver circuits for a 10-Gbps single-ended optical link in a 40-nm CMOS technology. The circuits are bonded using low-parasitic micro-solder bumps to silicon photonic devices on a 130-nm SOI platform. The transmitter drives oval resonant ring modulators with a 2-V swing...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 2012-09, Vol.47 (9), p.2049-2067
Main Authors: Liu, Frankie Y., Patil, Dinesh, Lexau, Jon, Amberg, Philip, Dayringer, Michael, Gainsley, Jon, Moghadam, Hesam Fathi, Xuezhe Zheng, Cunningham, John E., Krishnamoorthy, Ashok V., Alon, Elad, Ho, Ron
Format: Article
Language:English
Subjects:
Amplifiers
Analog circuits
Applied sciences
Circuit properties
Circuits
CMOS integrated circuits
Consumption
Design. Technologies. Operation analysis. Testing
Devices
Electric potential
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
electrooptic modulators
Exact sciences and technology
feedback circuits
hybrid integrated circuits
Integrated circuits
Integrated optics. Optical fibers and wave guides
Integrated optoelectronics. Optoelectronic circuits
Modulation
Noise levels
Optical and optoelectronic circuits
Optical receivers
Optical ring resonators
Optical transmitters
Optical waveguides
Receivers
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
thermal noise
Transmitters
Voltage
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Summary:We describe transmitter and receiver circuits for a 10-Gbps single-ended optical link in a 40-nm CMOS technology. The circuits are bonded using low-parasitic micro-solder bumps to silicon photonic devices on a 130-nm SOI platform. The transmitter drives oval resonant ring modulators with a 2-V swing and employs static thermal tuners to compensate for optical device process variations. The receiver is based on a transimpedance amplifier (TIA) with 4-kΩ gain and designed for an input power of - 15 dBm, a photodiode responsivity of 0.7 A/W, and an input extinction ratio of 6 dB. It employs a pair of interleaved clocked sense-amplifiers for voltage slicing and uses a DLL with phase adjustment for centering the clock in the data eye. Periodic calibration allows for adjustment of both voltage and timing margins. At 10 Gbps, the transmitter extinction ratio exceeds 7 dB and, excluding thermal tuning and laser power, it consumes 1.35 mW. At the same datarate, the receiver consumes 3.95 mW. On-chip PRBS generators and checkers with 2 31 -1 sequences confirm operation at a BER better than 10 -12 .
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2012.2197234