Silicon Photonics

Our research interest areas in silicon photonics that offers complementary advantages to silicon electronics. Together they produce significantly superior systems. We have an active program in this research area with focus on both analog and digital silicon nano-photonics and electronics co-integration. Some of the imposed limits by electronic process technologies (such as silicon-based technologies) in RF, mm-wave, and sub-mm-wave designs can be overcome using photonic devices and techniques. For instance, low loss optical delays and high quality factor resonators available in the photonic integrated circuits can be used to perform optically assisted electrical signal processing. Also, the availability of large band-width around the high carrier frequency of optical fields enables the use of optical mediums as high data-rate chip-to-chip or board-to-board interconnects. Examples of optically assisted electronics are integrated low phase noise opto-electronic oscillators and optically driven mm-wave radiators. Moreover, utilizing the advanced electronic circuit and system techniques together with near zero cost of integrated transistors in high node technologies can significantly improve the performance of photonic systems. Examples are RF assisted phase noise reduction of semiconductor lasers and electronically controlled optical phased arrays.

An 8×8 Heterodyne Lens-less OPA Camera
A One-Dimensional Heterodyne Lens-Free OPA Camera

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Hybrid Silicon Photonics and Electronics Solutions for Communications, Sensing, and Imaging

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Nanophotonic projection system

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Nanophotonic Coherent Imager

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A Self-Equalizing Photo Detector

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A Compact Optically Driven Travelling-Wave Radiating Source

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Electronic Two-Dimensional Beam Steering for Integrated Optical Phased Arrays

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Electronic Laser Phase Noise Reduction

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A 12.5+12.5 Gb/s Full-Duplex Plastic Waveguide Interconnect

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A 12.5+12.5Gb/s full-duplex plastic waveguide interconnect

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Brownian Noise in Radiation-Pressure-Driven Micromechanical Oscillators

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Characterization of a Radiation-Pressure-Driven Micromechanical Oscillator

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Predicting Data-Dependent Jitter

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Integrated Transversal Equalizers in High-Speed Fiber-Optic Systems

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Improved Performance of 10 Gb/s Multimode Fiber Optic Links Using Equalization

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Differential 4-tap and 7-tap Transverse Filters in SiGe for 10Gb/s Multimode Fiber Optic Link Equalization

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