Clint Schow

About

Clint Schow is a Professor in the Department of Electrical and Computer Engineering at UC Santa Barbara. His research interests include optoelectronic and electronic integration and co-design, photonic switching, equalization techniques for high-speed optical links, optoelectronic devices, and integrated transceiver packaging. He is associated with the Schow Group and is based in the Harold Frank Hall, Rm 4155. His contact information includes a phone number (+1 805-893-2875), email (schow@ece.ucsb.edu), and office location (3205C Engineering Science Building).

Research topics

• Computer Science
• Electronic engineering
• Engineering
• Optics
• Physics
• Electrical engineering
• Telecommunications
• Optoelectronics
• Computer hardware

Selected publications

• Analog Coherent Detection for Energy Efficient Intra-Data Center Links at 200 Gbps Per Wavelength

  Journal of Lightwave Technology · 2020 · 81 citations

  Senior authorCorresponding

  As datacenters continue to scale in size, energy efficiency for short reach (<; 2 km) links is a major factor for networks that may connect hundreds of thousands of servers. We demonstrate that links based on analog coherent detection (ACD) offer a promising path to simultaneously achieving significantly larger link budgets and improved link energy efficiency. A complete analysis is presented that considers the power consumption of all the photonic and electronic components necessary to realize…

  DOI

• First Demonstration of an O-Band Coherent Link for Intra-Data Center Applications

  Journal of Lightwave Technology · 2023 · 26 citations

  Senior authorCorresponding

  We report the first demonstration of a full O-band coherent link for intra-data center applications, including custom photonic and electronic integrated circuits for the transmitter and receiver. Full-link 112 Gbps (56 Gbaud QPSK) transmission is shown with <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$2.1\cdot 10^{-4}$</tex-math></inline-formula> measured BER, and record baud rate 128 Gbps (64 Gbaud QPSK) tr…

  PublisherDOI

• A 50-GBaud QPSK Optical Receiver With a Phase/Frequency Detector for Energy-Efficient Intra-Data Center Interconnects

  IEEE Open Journal of the Solid-State Circuits Society · 2022 · 21 citations

  This paper describes the energy-efficient realization of a QPSK optical receiver (CoRX) for short-reach intra-datacenter interconnects based on analog coherent detection. The CoRX comprises inphase and quadrature channels for each polarization and a high-speed phase-frequency detector (PFD) that provides feedback to stabilize an optical local oscillator (LO) and maintain coherence with the received optical signal. Each receive (RX) channel consists of a transimpedance amplifier (TIA) based on a…

  DOI

• Integrated SOAs enable energy-efficient intra-data center coherent links

  Optics Express · 2023-04-14 · 12 citations

  articleOpen accessSenior author

  Coherent optical links are becoming increasingly attractive for intra-data center applications as data rates scale. Realizing the era of high-volume short-reach coherent links will require substantial improvements in transceiver cost and power efficiency, necessitating a reassessment of conventional architectures best-suited for longer-reach links and a review of assumptions for shorter-reach implementations. In this work, we analyze the impact of integrated semiconductor optical amplifiers (SOA…

  PublisherDOI

• 400 Gbps/$\lambda$ O-Band Coherent Link Using SiP TX and RX PICs With Heterogeneously Integrated Lasers and SOAs

  Journal of Lightwave Technology · 2024-12-24 · 6 citations

  articleSenior author

  We report a net 400 Gbps/<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\lambda$</tex-math></inline-formula> O-band, dual-polarization, intradyne coherent link using silicon photonic (SiP) transmitter and receiver photonic integrated circuits (PIC) with heterogeneously integrated lasers and semiconductor optical amplifiers (SOA). Operation below the 15.3% overhead 2×10<inline-formula xmlns:mml="http://www.w3.o…

  PublisherDOI

Frequent coauthors

• Alexander Rylyakov

  Nokia (United States)

  107 shared

• Christian Baks

  IBM Research - Thomas J. Watson Research Center

  82 shared

• Fuad E. Doany

  81 shared

• Daniel M. Kuchta

  IBM (United States)

  63 shared

• Benjamin G. Lee

  Google (United States)

  54 shared

• James F. Buckwalter

  University of California, Santa Barbara

  41 shared

• Yurii A. Vlasov

  40 shared

• Aaron Maharry

  University of California, Santa Barbara

  40 shared

Labs

• Schow GroupPI

  Not provided

Education

• Ph.D., Electrical and Computer Engineering

  The University of Texas at Austin

  1999

Similar researchers at University of California, Santa Barbara

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