Realization of multigigabit channel equalization and crosstalk cancellation integrated circuits. - Cattalen Pelard; Edward Gebara; Andrew J. Kim; Michael G. Vrazel; Franklin Bien; Youngsik Hur; Moonkyun Maeng; Soumya Chandramouli; Carl Chun; Sanjay Bajekal; Stephen E. Ralph; Bruce Schmukler; et al. (IEEE J. Solid State Circuits, 2004)

Integrated mixed-signal optoelectronic system-on-a-chip sensor. - Dae-Ik Kim; Mikkel A. Thomas; Jeffrey J. Lillie; Karla S. Dennis; Benita M. Comeau; Martin A. Brooke; Nan M. Jokerst; Stephen E. Ralph; Clifford L. Henderson (ISCAS (2), 2005)

Integrated TIA-Equalizer for High Speed Optical Link. - Saurav Bandyopadhyay; Pradip Mandal; Stephen E. Ralph; Kenneth Pedrotti (VLSI Design, 2008)

Autonomous software-defined coherent optical receivers. - Pierre Isautier; Andrew J. Stark; Kedar Mehta; Richard DeSalvo; Stephen E. Ralph (OFC/NFOEC, 2013)

Joint ICI cancellation for superchannel coherent optical systems in nonlinear transmission regimes. - Cheng Liu; Jie Pan 003; Thomas Detwiler; Andrew Stark; Yu-Ting Hsueh; Gee-Kung Chang; Stephen E. Ralph (OFC/NFOEC, 2013)

Fractionally-spaced frequency domain linear crosstalk cancellation with spectral alignment techniques for coherent superchannel optical systems. - Jie Pan 003; Andrew Stark; Cheng Liu; Stephen E. Ralph (OFC/NFOEC, 2013)

Experimental demonstration of 51.56 Gbit/s PAM-4 at 905nm and impact of level dependent RIN. - Sriharsha Kota Pavan; Justin Lavrencik; Stephen E. Ralph (ECOC, 2014)

Robust autonomous software-defined coherent optical receiver. - Pierre Isautier; Jie Pan 003; Stephen E. Ralph (OFC, 2014)

Gaussian noise model aided in-band crosstalk analysis in ROADM-enabled DWDM networks. - Jie Pan 003; Pierre Isautier; Mark Filer; Sorin Tibuleac; Stephen E. Ralph (OFC, 2014)

50Gbit/s PAM-4 MMF transmission using 1060nm VCSELs with reach beyond 200m. - Sriharsha Kota Pavan; Justin Lavrencik; Roman Shubochkin; Yi Sun; Jinkee Kim; Durgesh Vaidya; Robert Lingle; Tomofumi Kise; Stephen E. Ralph (OFC, 2014)

Autonomous receiver architecture for multi-gigabit photonic assisted RF signals. - Pierre Isautier; Jie Pan 003; Stephen E. Ralph (ECOC, 2015)

Linearity requirements of QAM transmitters. - Stuart Hughes; Jie Pan 003; Jerrod S. Langston; Pierre Isautier; Hari Shankar; Stephen E. Ralph (OFC, 2015)

Agnostic software-defined coherent optical receiver performing time-domain hybrid modulation format recognition. - Pierre Isautier; Jerrod S. Langston; Jie Pan 003; Stephen E. Ralph (OFC, 2015)

Direct measurement of transverse mode correlation and MPN using 900nm VCSELs. - Justin Lavrencik; Sriharsha Kota Pavan; David K. Haupt; Stephen E. Ralph (OFC, 2015)

Addition of in-band crosstalk to the Gaussian noise model. - Jie Pan 003; Pierre Isautier; Mark Filer; Sorin Tibuleac; Stephen E. Ralph (OFC, 2015)

Robust Architecture for Autonomous Coherent Optical Receivers. - Pierre Isautier; Kedar Mehta; Andrew J. Stark; Stephen E. Ralph (JOCN, 2015)

Agile micro- and millimeter-wave communication using photonic frequency conversion. - Stuart Hughes; Jerrod S. Langston; Richard DeSalvo; Charles Middleton; Elliott Grafer; Stephen E. Ralph; Andrew J. Stark (OFC, 2016)

Direct measurement of transverse mode correlation and fiber-enhanced RIN through MMF using 850nm VCSELs. - Justin Lavrencik; Sriharsha Kota Pavan; Alirio Melgar; Stephen E. Ralph (OFC, 2016)

Requirements and results for practical VCSEL transmission using PAM-4 over MMF. - Stephen E. Ralph (OFC, 2016)

Error-Free 100Gbps PAM-4 Transmission over 100m Wideband Fiber using 850nm VCSELs. - Justin Lavrencik; Siddharth Varughese; Johan S. Gustavsson; Erik Haglund; Anders Larsson; Stephen E. Ralph (ECOC, 2017)

Polybinary Coding for Low Complexity High Speed Error-Free VCSEL-MMF Links. - Siddharth Varughese; Justin Lavrencik; Johan S. Gustavsson; Erik Haglund; Anders Larsson; Stephen E. Ralph (ECOC, 2017)

4λ × 100Gbps VCSEL PAM-4 transmission over 105m of wide band multimode fiber. - Justin Lavrencik; Siddharth Varughese; Varghese A. Thomas; Gary Landry; Yi Sun; Roman Shubochkin; Kasyapa Balemarthy; Jim Tatum; Stephen E. Ralph (OFC, 2017)

Experimentally benchmarked fiber propagation model for 50Gbps PAM-4 MMF links employing multimode VCSELs. - Alirio A. Melgar-Evangelista; Varghese A. Thomas; Justin Lavrencik; Siddharth Varughese; Stephen E. Ralph (OFC, 2017)

Blind Cyclostationarity-Based Format Classification for Coherent Links. - Jerrod S. Langston; Siddharth Varughese; Richard DeSalvo; Stephen E. Ralph (ECOC, 2018)

Power Efficient Modulation Formats for Error-Free VeSEL MMF Links. - Justin Lavrencik; Siddharth Varughese; Johan S. Gustavsson; Erik Haglund; Anders Larsson; Stephen E. Ralph (ECOC, 2018)

Multimode VCSEL Parameter Extraction for Optical Link Models. - Alirio Melgar; Varghese A. Thomas; Stephen E. Ralph (ECOC, 2018)

Optimum VCSEL Apertures for High-Speed Multimode Fiber Links. - Justin Lavrencik; Johan S. Gustavsson; Erik Haglund; Anders Larsson; Stephen E. Ralph (OFC, 2018)

Parameter Extraction through Joint Optimization of Modulation Response and RIN Spectra. - Alirio Melgar; Varghese A. Thomas; Justin Lavrencik; Stephen E. Ralph (OFC, 2018)

Microwave Photonic Links: Optimizing SiP Modulator Design and Operation. - Christian G. Bottenfield; Varghese A. Thomas; Stephen E. Ralph (OFC, 2019)

Error-Free 100Gbps PAM-4 Transmission Over 100m OM5 MMF using 1060nm VCSELs. - Justin Lavrencik; Ewa Simpanen; Siddharth Varughese; Alirio Melgar; Varghese A. Thomas; Johan S. Gustavsson; Wayne V. Sorin; Sagi Mathai; Mike Tan; Anders Larsson; Stephen E. Ralph (OFC, 2019)

High Capacity VCSEL Links. - Stephen E. Ralph; Justin Lavrencik (OFC, 2019)

Identification of Soft Failures in Optical Links using Low Complexity Anomaly Detection. - Siddharth Varughese; Daniel Lippiatt; Thomas Richter 004; Sorin Tibuleac; Stephen E. Ralph (OFC, 2019)

55 Gbps error free data transmission with 980 nm VCSELs across 100 m of multiple-mode optical fiber. - Nasibeh Haghighi; Justin Lavrencik; Stephen E. Ralph; James A. Lott (OECC/PSC, 2019)

Convolutional Recurrent Machine Learning for OSNR and Launch Power Estimation: A Critical Assessment. - Hyung Joon Cho; Siddharth Varughese; Daniel Lippiatt; Stephen E. Ralph (OFC, 2020)

Spectrum Sensing Applications of FWM-Based Optical Cyclostationary Processor. - Jerrod S. Langston; Richard DeSalvo; Stephen E. Ralph (OFC, 2020)

168Gbps PAM-4 Multimode Fiber Transmission through 50m using 28GHz 850nm Multimode VCSELs. - Justin Lavrencik; Siddharth Varughese; Nikolay Ledentsov Jr.; Lukasz Chorchos; Nikolay N. Ledentsov; Stephen E. Ralph (OFC, 2020)

Optical Interconnects using Single-Mode and Multi-Mode VCSEL and Multi-Mode Fiber. - Nikolay N. Ledentsov; V. A. Shchukin; Vladimir P. Kalosha; Nikolay Ledentsov Jr.; Lukasz Chorchos; Jaroslaw P. Turkiewicz; Urs Hecht; Patrick Kurth; Friedel Gerfers; Justin Lavrencik; Siddharth Varughese; Stephen E. Ralph (OFC, 2020)

Joint Linear and Nonlinear Noise Estimation of Optical Links by Exploiting Carrier Phase Recovery. - Daniel Lippiatt; Siddharth Varughese; Thomas Richter 004; Sorin Tibuleac; Stephen E. Ralph (OFC, 2020)

TDECQ Sensitivity to Algorithmic Implementation and Noise Characterization. - Varghese A. Thomas; Alirio Melgar; Siddharth J. Varughese; Daniel Garon; Kan Tan; Shane A. Hazzard; Maria Agoston; Pavel Zivny; Stephen E. Ralph (OFC, 2020)

Accelerating TDECQ Assessments using Convolutional Neural Networks. - Siddharth Varughese; Daniel A. Garon; Alirio Melgar; Varghese A. Thomas; Pavel Zivny; Shane A. Hazzard; Stephen E. Ralph (OFC, 2020)

Low Complexity Soft Failure Detection and Identification in Optical Links using Adaptive Filter Coefficients. - Siddharth Varughese; Daniel Lippiatt; Thomas Richter 004; Sorin Tibuleac; Stephen E. Ralph (OFC, 2020)

A Co-Integrated Silicon-Based Electronic-Photonic Wideband, High-Power Signal Source. - Saeed Zeinolabedinzadeh; Patrick Goley; Milad Frounchi; Sunil G. Rao; Christian G. Bottenfield; Gareeyasee Saha; Andy Stark; Stephen E. Ralph; Mehmet Kaynak; Lars Zimmermann; Stefan Lischke; Christian Mai; et al. (OFC, 2020)

Robust Topology Optimization for Foundry-Photonics Inverse Design: Examining Compact and Arbitrary Power Splitters. - Alec M. Hammond; Joel Slaby; Gareeyasee Saha; Stephen E. Ralph (ECOC, 2021)

High Performance Microwave Photonic Downconversion in a Commercial InP Platform. - Christian G. Bottenfield; Michael T. Hoff; Varghese A. Thomas; Ardy Winoto; Yuchun Zhou; Ashish Bhardwaj; Gloria E. Hoefler; Richard DeSalvo; Stephen E. Ralph (OFC, 2021)

System-Level Inverse Design for Stokes Receivers on a Commercial Foundry Platform. - Alec M. Hammond; Stephen E. Ralph (OFC, 2021)

Self-Homodyne Photonic Transmitter in a Monolithic InP Platform for RF Applications. - Michael T. Hoff; Christian G. Bottenfield; Varghese A. Thomas; Ardy Winoto; Yuchun Zhou; Ashish Bhardwaj; Gloria E. Hoefler; Stephen E. Ralph (OFC, 2021)

Impairment Identification for PAM-4 Transceivers and Links Using Machine Learning. - Daniel Lippiatt; Alirio Melgar; Varghese A. Thomas; Siddharth Varughese; Pavel Zivny; Shane A. Hazzard; Stephen E. Ralph (OFC, 2021)

Widely Tunable Apodized Bragg Grating Filter Fabricated in a Silicon Photonic Foundry. - Gareeyasee Saha; Stephen E. Ralph (OFC, 2021)

Optical Performance Monitoring for Commercial Transceivers using Constellations: Practical Considerations. - Daniel Lippiatt; Hyung Joon Cho; Alex Kaylor; Varghese A. Thomas; Steven Searcy; Thomas Richter 004; Sorin Tibuleac; Stephen E. Ralph (OFC, 2022)

Behavioral PAM-4 VCSEL Model using Stochastic Multimode Rate Equations for Link Design Optimization. - Alirio Melgar; Varghese A. Thomas; Benjamin D. B. Klein; Itshak Kalifa; Paraskevas Bakopoulos; Elad Mentovich; Stephen E. Ralph (OFC, 2022)

An Optical and mm-Wave Converged, Dual-Band, Multi-Beam Rotman Lens Antenna Array System Enabling Simplified Designs of B5G/mmW Base Stations for Ultra Dense Wireless Networks. - Lauryn P. Smith; Charles A. Lynch; C. Alex Kaylor; L. Alberto Campos; Lin Cheng 006; Stephen E. Ralph; Manos M. Tentzeris (IEEE Access, 2025)