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We experimentally demonstrate silicon ring resonators with internal quality factors of Q0=2.2×107, corresponding to record 2.7-dB/m losses. We show that the losses are bend-loss-limited, indicating that the loss limit for silicon has not been reached.
A high-speed adiabatic resonant microring silicon modulator, which simultaneously enables interior electrical contacts, 4-μm diameter, and 6.9-THz free spectral range, is demonstrated with open eye diagrams up to 12Gb/s, and extinction ratios up to 7.3dB.
Photonic interconnection networks based on silicon photonic technology have the potential to alleviate some of the communication and computation bottlenecks that are currently hindering performance and scalability. By concatenating small-scale silicon photonic building blocks into larger subcomponents, combined with monolithic integration with advanced CMOS electronics, we can create versatile photonic...
We lock an adiabatic microring resonator to a laser line with a lock-in time of 200μβ using a digital control loop, thereby experimentally demonstrating the first automated and scalable wavelength recovery approach for microring resonators.
We propose a novel fully-integrated scalable photonic switch architecture for data center networks, sustaining nonblocking 256×256 port size with nanosecond-scale switching times, interconnecting 2,560 server racks with 51.2-Tb/s bisection bandwidth.
We introduce a multi-layer silicon photonic microring resonator filter, fabricated using deposited materials, and transmit up to 12.5-Gb/s error-free data, establishing a novel class of high-performance silicon photonics for advanced photonic NoCs.
We examine the complex relationship between experimentally-measured power penalty performance metrics of a silicon photonic modulator, and its broad impact on the throughput performance of a full-scale on-chip optical interconnection network. Using our physically-accurate network-level simulation environment, we further evaluate this impact from hypothetical device performance improvements. The results...
Error-free switching of up to 40-Gb/s data using a silicon photonic microring resonator electro-optic switch is demonstrated for the first time, with bit-error-rate and power penalty characterizations firmly establishing its feasibility for high-performance photonic networks-on-chip.
We characterize optical crosstalk and the associated bit-error rate degradation in silicon nanowaveguides. Results indicate that crosstalk decreases with increasing modulation frequency, which we attribute to free-carrier lifetime in the nanowaveguides.
We demonstrate broadband continuous wavelength conversion of 10-Gb/s data across 100 nm using four-wave mixing in dispersion-engineered silicon waveguides. Error-free operation and constant 2-dB power penalties are experimentally obtained for all examined probe-idler separations.
Data fidelity is inspected for the first time for wavelength-converted RZ TDM 80- and 160-Gb/s data using four-wave mixing in a silicon waveguide. Open eye diagrams and error-free operation is shown for demultiplexed 10-Gb/s tributaries.
First demonstration of long-haul transmission reaching bandwidth-distance product of 1-Tb-km/s, using silicon microring resonator electro-optic modulator, sets new precedence for silicon photonic applications. 12.5-Gb/s bit-error-rate and power penalty measurements confirm 80-km of feasible fiber propagation.
We conduct an architectural exploration of three chip-scale photonic interconnection networks in a novel simulation environment, exploring insertion loss, crosstalk, and energy. The impact of these metrics is evaluated in the context of network performance.
Recent developments have shown the possibility of leveraging silicon nanophotonic technologies for chip-scale interconnection fabrics that deliver high bandwidth and power efficient communications both on- and off-chip. Since optical devices are fundamentally different from conventional electronic interconnect technologies, new design methodologies and tools are required to exploit the potential performance...
Error-free 12.5-Gb/s operation of silicon microring resonator electro-optic modulator is experimentally demonstrated, with bit-error-rate and power penalty performance metrics measured using system-level comparative analysis for varying modulation rates. Results show functional feasibility for photonic networks-on-chip.
We characterize optical crosstalk and the associated bit-error rate degradation in silicon nanowaveguides. Our results indicate that the crosstalk decreases with increasing modulation frequency and decreases with input power, which we attribute to free-carrier absorption.
We demonstrate all-optical spatial multicasting enabled by nanophotonic devices in two cascaded silicon chips. We evaluate each spatially-multicasted signal using 10-Gb/s BER measurements, facilitating the path towards fully-monolithic photonic integrated circuits performing complex network-level functionalities.
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