BACKGROUND Scar revision with CO2 and Er:YAG lasers has become popular in recent years. Reports on the newest (modulated, dual-mode) Er:YAG systems have been limited mostly to the treatment of photodamaged skin and rhytides. OBJECTIVE To prospectively evaluate the efficacy and safety of a dual-mode 2940 nm Er:YAG laser for atrophic scar revision. METHODS Twenty-five consecutive patients wit...

In this paper, we propose a new dual-mode blind equalization algorithm to improve the channel equalization performance. First, a kind of new error function is proposed and a nonlinear function between the step-size factor and the new error function is built to realize the variable step-size constant modulus algorithm (CMA). Then, in order to optimize the channel equalization performance, the va...

We report the results of our study on the role of microfluidic infiltration technique in improving the coupling characteristics of dual-core photonic crystal fiber (PCF) couplers. Using the finite element method (FEM), we evaluate the effective mode area, dispersion and coupling parameters of an infiltrated dual-core PCF. We use these parameters to design a compact and reconfigurable coupler by...