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— Given the spatial and temporal randomness of soft and permanent errors in the state-of-the-art system-on-chips (SoCs), dynamic routing algorithms that can adapt themselves accordingly are highly required for network-on-chip (NoC) applications. In this paper, we present a new dynamic routing algorithm for NoC applications that has the ability to locate and(More)
In this paper, we present the design, fabrication, and characterization of a traveling-wave directional coupler modulator based on electro-optic polymer, which is able to provide both high linearity and broad bandwidth. The high linearity is realized by introducing Á-reversal technique in the two-domain directional coupler. A traveling-wave electrode is(More)
We have investigated the feasibility of multimode polysilicon waveguides to demonstrate the suitability of polysilicon as a candidate for multilayer photonic applications. Solid Phase Crystallization (SPC) with a maximum temperature of 1000°C is used to create polysilicon on thermally grown SiO<sub>2</sub>. We then measure the propagation losses for various(More)
We demonstrate intra- and inter-board level optical interconnects using polymer waveguides and waveguide couplers consisting of both 45 degree total internal reflection (TIR) mirrors and inkjet-printed micro-lenses. Surface normal couplers consisting of 50 µm × 50 µm waveguides with embedded 45 degree mirrors are fabricated using a nickel mold imprint.(More)
The authors would like to acknowledge the Air Force Office of Scientific Research (AFOSR) for supporting this work under the Multidisciplinary University Research Initiative (MURI) program (Grant No. FA 9550-08-1-039), monitored by Dr. Gernot Pomrenke. Abstract: We demonstrate on-chip tunable true-time-delay (TTD) lines based on photonics crystal(More)
We investigate effects of different mechanisms on coupling efficiency between strip waveguides and the slow light mode in photonic crystal waveguides ͑PCWs͒. Both numerical simulations and experimental results show that group index ͑n g ͒ tapering improves strip-PCW butt-coupling efficiency when compared to a direct coupling between a strip waveguide and a(More)
We investigate the loss mechanism in three-moded multimode-interference couplers that are the building blocks of a compact and low-loss waveguide crossing structure. Broadband silicon waveguide crossing arrays with <0.01  dB insertion loss per crossing are proposed using cascaded multimode-interference couplers, where lateral subwavelength nanostructures(More)
We demonstrate an EO polymer based traveling-wave MMI-fed directional-coupler modulator. High-speed and linear operation is demonstrated with bandwidth-length product of 125GHz· cm, the 3-dB electrical bandwidth of 10GHz, and the SFDR of 110±3dB/Hz 2/3. A 1×2 multi-mode interference (MMI) 3-dB coupler (176.6nm×15nm) is designed to equally split the input(More)