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We describe a scalable optomechanical array, with double-disk resonators, for two-qubit quantum phase gate of phonon states where mechanical systems exhibit significantly long lifetime. Simulation results show high fidelity and low photon loss.
We demonstrate a strong optomechanical coupling air-slot mode-gap photonic crystal cavity with dispersive coupling gom up to 940 GHz/nm. Optical and mechanical measurements are shown. Radio frequency spectrum is obtained theoretically and experimentally with a megahertz resonant frequency.
We review our work on silicon wire devices designed for evanescent field sensor arrays and ultra-compact dense optical comb filters, both taking advantage of a spiral cavity resonator design. Two sensor array configurations are described, and monitoring of biomolecular binding is demonstrated with a detection limit of 0.3 pg/mm2. On-chip temperature drift compensation is achieved by using a reference...
We demonstrated a strong optomechanical coupling in a high-quality factor (Q) air-slot mode-gap photonic crystal cavity with ultrasmall mode volume, with a coupling length L∼2.9µm. Optomechanical coupling lengths with different slot gaps and lengths were also compared.
We propose ultra-small DQPSK modulators and demodulators based on silicon microring-resonators at 20 Gb/s, which may require chip size of only tens of mum2 . BER of <10-9; is achieved in back-to-back case.
We propose a bistable device based on the Kerr effect in a microfiber resonator. Our simulations show that low switching powers (in the order of a few tens of mW) are expected with tellurite microfibers.
We show key design guidelines for three types of micro-ring modulators. We find that: (i) the dual-waveguide structure can have a 10-dB higher Q and is tolerant to long transit times, (ii) the induced peak shift can have an optimal value, and (iii) detuning before transmission can decrease penalty 10 dB further.
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