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A record low energy (250fJ/bit) intra-chip electronic-photonic link is demonstrated at 5Gb/s on a 3D-integrated wafer using through-oxide-vias (1.45fF-per-via) for the first time. The receiver sensitivity was −19.3dBm and the on-chip laser energy was 6fJ/bit.
We lock an adiabatic microring resonator to a laser line with a lock-in time of 200μβ using a digital control loop, thereby experimentally demonstrating the first automated and scalable wavelength recovery approach for microring resonators.
In this paper, a distributed video coding technique with prioritized channel coding of W-Z frames is presented. In the proposed framework, W-Z frame macroblocks are classified into different groups based on the estimated quality of the side information. The information is transmitted via uplink channel back to the encoder so that macroblocks with similar error statistics can be grouped tighter in...
Mobile 2.0 is being considered as a natural extension of the Web 2.0 revolution to the mobile networks. One important concept in Web 2.0 is the real-time creation and uplink transmission of rich multimedia contents from individual clients to the Internet. However, due to power constraints of mobile handsets, it is difficult to turn this concept into practice in mobile ecosystems. To realize this vision,...
SiGe alloys have been successfully to a number of semiconductor devices, including bipolar heterojunction transistors, field effect transistors (FET's), tunneing and optoelectronic devices and structures. This review paper will first summarize the results obtained to-date in bipolar transistors, highlighting the design flexibility and the trade-offs offered by SiGe heterojunction technology an bandgap...
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