This paper describes the circuit design and measured performance of a 6-bit 8-GS/s current-steering DAC. A CML interface supporting the maximum conversion rate of 8Gbps is integrated in the chip. A PRBS-7 generator is built in the chip for synchronization as well as for data descrambling. In order to realize good linearity performance, a 2-2-2 […]

Advanced energy minimization techniques (i.e. DVFS, Thermal Management, etc) and their high-level HW/SW requirements are well established in high-throughput multi-core systems. These techniques would have an intolerable overhead in low-cost, performance-constrained microcontroller units (MCU’s). These devices can further reduce power by operating at a lower voltage, at the cost of increased sensitivity to PVT variation […]

A software birthmark is a unique characteristic of a program. Thus, comparing the birthmarks between the plaintiff and defendant programs provides an effective approach for software plagiarism detection. However, software birthmark generation faces two main challenges: the absence of source code and various code obfuscation techniques that attempt to hide the characteristics of a program. […]

We overview operational issues in Raman amplifier system deployment from the viewpoints of precautions and countermeasures against potential hazards and optical signal-to-noise ratio system design for stable commercial use.

We demonstrate the phase-matched four-wave mixing (FWM) generation by the fast light effect in the bandgap of fiber Bragg grating. Energy conversion out of the bandgap has been realized in a low power level. The experimental result shows great agreement with the simulation.