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Many biological systems are composed of unreliable components which self-organize effectively into systems that achieve a balance between efficiency and robustness. One such example is the true slime mold Physarum polycephalum which is an amoeba-like organism that seeks and connects food sources and efficiently distributes nutrients throughout its cell(More)
Given an arbitrary deployment of sensor nodes, one fundamental design issue in wireless sensor networks (WSNs) is to connect the source nodes collecting sensing data to the sinks so that sensing data flows efficiently and reliably to the sinks. To facilitate such data collection, we require a path formation protocol that will determine multi-hop routes(More)
Many biological systems are composed of unreliable components which self-organize efficiently into systems that can tackle complex problems.One such example is the true slimemoldPhysarum polycephalum which is an amoeba-like organism that seeks food sources and efficiently distributes nutrients throughout its cell body. The distribution of nutrients is(More)
The phenomenon of self-organization is pervasive in nature, where biological organisms efficiently self-organize unreliable and dynamically changing components to develop a wide diversity of functions. In addition, these biological organisms enjoy the desirable properties of robustness to the failure of individual components, adaptivity to changing(More)
We show, for the first time, dense WDM (8×20  Gbit/s) transmission at 2 μm enabled by advanced modulation formats (4-ASK Fast-OFDM) and the development of key components, including a new arrayed waveguide grating (AWGr) at 2 μm. The AWGr shows -12.8±1.78  dB of excess loss with an 18-dB extinction ratio and a thermal tunability of 0.108 nm/°C.
We report on the first InP-based Mach-Zehnder modulator (MZM) employing quantum-confined Stark effect (QCSE) for operation around 2000 nm. The polarization sensitive device is based on 15 compressively strained quantum wells and achieves an electro-optic (EO) bandwidth of at least 9 GHz, with a DC extinction ratio of ~9 dB, and a V(π)L ~9.6 V.mm. We(More)
This paper discusses Fowler-Nordheim stress induced dark current generation via a substrate electron injection at the Transfer Gate in a 4T pixel CMOS image sensor. It has been reported that substrate injection causes less damage to the Si-SiO2 interface compared to electron injection from the gate. However, the stress effect on dark current from(More)
In this paper, we will demonstrate the possibility of opening a new telecommunications transmission window around the 2 μm wavelength, in order to exploit the potential low loss of hollow-core photonic bandgap fibers, with the benefits of significantly lower non-linearity and latency. We will show recent efforts developing a dense wavelength division(More)
This paper reports an efficient ‘Finite Element analysis (FEA)’ simulation model to study the line heating process for simulating the manufacturing process of doubly curved structures. The simulation model is implemented with commercially available software (Ansys *TM Mechanical APDL) and the source of thermal energy is assumed to be a ‘Gaussian’(More)
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