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Through rigorous process, electrical, and optical simulations, we develop a new silicon depletion-mode vertical p-n junction phase-modulator implemented in Mach-Zehnder modulator configuration, enabling an ultralow measured V??L of only ~ 1 V??cm. Further, in a 500-??m-long lumped element device, we demonstrate a 10-Gb/s nonreturn-to-zero data transmission with wide-open complementary output eye...
A new class of microphotonic-resonators, Adiabatic Resonant Microrings (ARMs), is introduced. The ARM resonator geometry enables heater elements to be formed within the resonator, simultaneously enabling record low-power (4.4 W/GHz) and record high-speed (1 mus) thermal tuning.
We demonstrate a 4 mum silicon microdisk modulator with a reverse-biased, vertical p-n junction. The modulator demonstrates a power consumption of 85 fJ/bit at a data rate of 10 Gb/s, 3.5 V drive, BER<10-12, and without signal pre-emphasis. High-speed silicon bandpass switches are constructed from pairs of modulators.
Beginning in the mid-1990s, Sandia National Laboratories began its migration to Silicon-on-Insulator (SOI) wafers to develop a radiation-hardened semiconductor process for sub-0.5mum geometries. Successfully radiation hardening SOI technologies enabled an in-house processing familiarity that exceeded our expectations by opening opportunities to improve other technologies. Rather than rely on a single...
We demonstrate a 4 mum silicon microdisk modulator with a power consumption of 85 fJ/bit. The modulator utilizes a reverse-biased, vertical p-n junction to achieve 10 Gb/s data transmission with 3.5 V drive voltage, BER<10-12, and without signal pre-emphasis. High-speed silicon bandpass switches are constructed from pairs of modulators.
We describe silicon microring-resonator-based microphotonic circuits that support complete (amplitude and phase) disabling of resonant states, enabling novel capabilities: truly- hitless switching/tuning of high-order, telecom-grade channel add-drop filters, dispersionless FSR multiplication, and "hot-swapping" of photonic subsystems.
We present the first experimental demonstration of recently proposed loop-coupled resonator device concepts, with characteristic transmission zeros, enabling optimally sharp passbands for channel add-drop filter applications. Fourth-order SiN-core and Si-core strong-confinement microring-resonator designs are described.
We review major developments that have led to a high performance, polarization independent, microphotonic circuit. The design and fabrication of complex high-order microring-resonators, along with techniques to freely manipulate polarization states on-chip are presented.
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