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In 2013, Tornado Spectral Systems introduced OCTANE-860, the first chip-based nanophotonic spectrometer for spectral-domain OCT. Technology advantages and challenges have been identified during development and a new strategy for optimizing performance will be discussed.
We introduce OCTANE, the first product line of chip-based spectrometers using silicon photonics for spectral domain optical coherence tomography (SD-OCT). It is well suited for low-cost, high-volume applications in both the medical and industrial fields.
We experimentally show vertically-stacked, multi-layer, low-temperature deposited photonics for integration on processed electronics. Waveguides, microrings, and crossings are fabricated out of 400°C PECVD Si3N4, in a two layer configuration.
We experimentally demonstrate all-optical control of a single resonance in a silicon micro-ring resonator using Raman-induced loss. Simulations indicate the potential for signal routing with >97% throughput using picojoule control pulses.
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 derive fundamental performance tradeoffs that determine bandwidth and optical power budget in large-scale WDM links or networks utilizing silicon microresonators. Bandwidth per waveguide scales to >lTHz, but nonlinearities limit optical power to milliwatt levels.
We demonstrate a bulk silicon alternative to SOI, using Si3N4 masking and oxidation techniques. We show waveguide losses of 2.92 dB/cm with a process compatible with the front-end of a typical CMOS fabrication line.
A nonblocking four-port bidirectional multiwavelength message router for use in photonic network-on-chip (NoC) architectures implementing two-dimensional mesh or torus topologies is fully characterized with bit-error-rate measurements and eye diagrams using three wavelength-parallel 10-Gb/s channels. The experiments demonstrate the feasibility of using this advanced switching subsystem within dynamically...
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.
We demonstrate a high-order frequency filter based on microring pairs, capable of restoring distorted transmission functions by dynamically adjusting resonance parameters. Individual rings are thermo-optically tunable and are adjusted based on an evolutionary algorithm.
We demonstrate microring resonators on silicon-on-insulator with bandwidth tunable from 0.1 nm to 0.7 nm, an extinction ratio of 23 dB and a footprint of less than 0.001 mm2 using interferometric couplers and thermal tuning.
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