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The Facility for Laboratory Reconnection Experiments (FLARE) is an intermediate laboratory experiment currently under construction at Princeton University by a consortium of five universities and two Department of Energy (DoE) national laboratories, located at the Princeton Plasma Physics Laboratory (PPPL). The goal of FLARE is to provide experimental accesses to new regimes of the magnetic reconnection...
We present a high-performance InGaN/GaN heterojunction phototransistor with the responsivity (Rλ)> 8 (A/W) low norse-equrvalent-power (NEP) < 1.1×10−17 (W-Hz−0.5) and high detectivity(D∗)> 1.2×1014 (cm-Hz0.5-W−1).
In this research, a test rig testing the performance of a hydraulic oil purifier based on HIGEE technology is established. Generally, filler, cone angle, length of vortex finder and flowrate are considered as four kinds of the most important parameters affecting the purification efficiency of the purifier. Thus, each of the parameters with four different levels is investigated during the study. In...
640 Gbit/s N-OTDM DPSK wavelength conversion is demonstrated in a Si-nanowire. All 64 tributaries are converted within an average power penalty of 1 dB at the FEC BER-limit 3E-3. Only 22-fJ/bit switching energy is required.
This paper presents an impact based piezoelectric vibration energy harvester using freely movable metal spheres as proof mass and an MFC (Macro Fiber Composite) beam as a piezoelectric cantilever. External vibration is transformed into free motion of metal spheres inside the channels and impact between the metal sphere and channel end induces a vibration of the MFC beam to generate electric power...
This paper presents the design, fabrication, and measurement results of an electromagnetic biaxial vector-graphic scanning micromirror. Instead of utilizing locally distributed magnetic fields from multiple magnets, radial magnetic field from concentric magnet assembly and unique coil geometry have been used to realize independent scan along two perpendicular axes irrespective of operation frequency...
In this paper, we present recent research on silicon nanowires for ultra-fast and ultra-broadband optical signal processing at DTU Fotonik. The advantages and limitations of using silicon nanowires for optical signal processing are revealed through experimental demonstrations of various optical signal processing.
It is possible to reconfigure supply chains with less cost and time if we use the mobile-robot bin packing system. So, many companies attempt at adopting mobile robots as their new carrier in their own warehouse. However, it is difficult to utilize indoor service robots as a carrier due to the localization problem, the safety problem, and the narrow bin packing environment. So we propose a practically...
This paper presents an overview of recent work on the use of silicon waveguides for processing optical data signals. We will describe ultra-fast, ultra-broadband, polarisation-insensitive and phase-sensitive applications including processing of spectrally-efficient data formats and optical phase regeneration.
In this paper, we present an energy harvesting device which generates power from low frequency vibration using a magnetoelectric laminate composite and a springless spherical permanent magnet as a proof mass. The spherical permanent magnet inside a channel transforms an external vibration into time varying magnetic field applied to the magnetoelectric transducer. The magnetoelectric laminate composite...
We have generated a phase-correlated 160 GBaud NRZ-like DPSK signal based on XPM in a HNLF. The generated 160 GBaud DPSK signal is Nyquist filtered with minimized ISI and error-free performance is achieved.
We present an electro-photonic circuit integrated into a 65-nm DRAM periphery process. Its photonic circuit features 2-dB/mm waveguide, 7-dB grating coupler, 10-Gb/s modulator, and 5-Gb/s Ge photodiode.
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.
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.
Dynamic phase and amplitude all-optical responses of silicon nanowires are characterized using a terahertz optical asymmetric demultiplexer (TOAD) based pump-probe scheme. Ultra-fast recovery is observed for moderate pump powers.
All-optical 2R regeneration of a 160-Gbit/s RZ-OOK signal is demonstrated in a fiber optical parametric amplifier using a highly nonlinear fiber with the data as pump. Bit error rate bathtub curves validate the regeneration performance.
To ensure that ultra-high-speed serial data signals can be utilised in future optical communication networks, it is indispensable to have all-optical signal processing elements at our disposal. In this paper, the most recent advances in our use of non-linear materials incorporated in different function blocks for high-speed signal processing are reviewed.
We present polarization insensitive one-to-six WDM multicasting based on non-degenerate four-wave mixing in a silicon nanowire with angled-pump scheme. Bit-error rate measurements are performed and error-free operation is achieved.
We have demonstrated 160 Gb/s all-optical data modulation with an extinction ratio of 18.5 dB based on XPM in a silicon nanowire. Error free performance is achieved for the optically modulated 160 Gb/s signal.
Silicon-on-Insulator nanowires provide an excellent platform for nonlinear optical functions in spite of the two-photon absorption at telecom wavelengths. Work on both crystalline and amorphous silicon nanowires is reviewed, in the wavelength range of 1.5 to 2.5 μm.
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