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We used novel Monte-Carlo simulations with the Nonlinear Schrödinger Equation to analyze changes in timing-jitter after optical propagation within silicon nanowire-waveguides subjected to two-photon absorption; this absorption was found to attenuate the timing jitter.
A wavelength selective switch composed of microring resonators and MZI-based thermo-optic switches is fabricated in an SOI waveguide. A wavelength-selective transmittance change of 9.7 dB is demonstrated at a wavelength channel of 1.548 µm.
We have compared a number of well known plasmonic guides in terms of power confinement, normalized power density, and propagation loss. We have identified the relative advantages and limitations of these guides.
Semiconductors with a high optical nonlinearity, e.g., silicon, which can be lithographically patterned into nanophotonic waveguides or micro-resonators, may lead to on-chip room-temperature telecommunications-band quantum light sources for complex and scalable systems.
We propose a new scheme for tunable narrowband filters using a silicon nitride on silicon-on-insulator platform, which enables reconfigurability, low propagation loss, and high power handling capability. Preliminary results are provided.
We present the first experimental demonstration of a novel class of hybrid III–V on silicon microlasers. This new type of laser revolves around the concept of resonant mirrors: two silicon cavities, directly coupled to the III–V laser mesa, provide high, narrow band reflection over a short distance. This results in a device that measures only 55 µm by 2µm and shows single-mode laser emission with...
Hybrid III–V/silicon lasers for short reach optical interconnect applications need to have a modest power dissipation and preferably also a small footprint. Furthermore they should be free of mode hops even under varying temperature conditions. In this paper a number of designs will be discussed that address this set of requirements.
We demonstrate an integrated silicon and ultra-low-loss silica waveguide platform. Coupling between layers is achieved with (0.4±0.2) dB of loss per transition and a 20 nm 3-dB bandwidth.
The experimental realization of a nanoscale, high efficiency, and non-resonant broadband orthogonal junction as a coupling scheme between plasmonic slot and silicon waveguide is presented. This serves as an enabling platform for hybrid plasmonic interconnects.
A waveguide coupled Ge PIN photodiode showing 0.7A/W responsivity and 13GHz optical bandwidth at a low dark current of 12mA/cm2 is presented. Its unique features facilitate integration in a high-performance, photonic BiCMOS process.
Hybrid integrated chip-scale optical interconnects based on small-footprint coupling to surface-normal MQW devices are advanced. Refinements to the grayscale lithographic fabrication process provide a path to ultra-high-density seamless interfacing between the on- and off-chip domains.
We report on hybrid III–V on Silicon lasers with adiabatic coupling. Fabry-Pérot laser with 16mW output power, integrated racetrack laser and photodetector, as well as widely tunable laser with 45nm tuning range are presented.
We have successfully demonstrated 160 Gbit/s all-optical packet switching based on cross-phase modulation using a silicon chip. Error free performance is achieved for the 4-to-1 switched 160 Gbit/s packet.
High-end computing systems are expected to scale from petascale to exascale over the next decade. We describe requirements and architectures for high-bandwidth interconnects based on integrated photonic components that could enable this performance growth.
We demonstrate a silicon chip based all-optical device capable of providing single shot time-domain measurements of picosecond pulses near λ=1550nm. The 96µm long device relies on optical third harmonic generation between two pulses in a slow light photonic crystal waveguide.
We propose a novel ultra-compact (4.7 µm) hybrid-plasmonic polarization rotator at telecommunication wavelength for integrated Si photonic circuits. The device shows an extinction ratio of >17 dB, and low insertion losses of 1.6 dB.
We present a compact silicon microring modulator with record modulation speed. A novel zigzag PN junction is designed for high efficiency and high bandwidth. 44 Gbit/s NRZ modulation is demonstrated with 3 dB extinction ratio.
By leveraging the plasmonic mode of dielectric-loaded surface plasmon waveguide, a strong enhancement of the SERS signal between adjacent core-shell nanoparticles could be realized through coupling to the propagating SPP.
We have developed high-density hybrid integrated light sources for a photonics-electronics convergence system. We proposed and demonstrated a hybrid integration scheme of high-density multichannel laser-diode (LD) chips on a silicon photonics platform with a novel spot size converter.
We experimentally demonstrate self-phase modulation based all-optical regeneration of a 40 Gbit/s serial data signal in a silicon nanowire. Bit error rate characterization shows 2 dB receiver power improvement.
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