A fourth-order Gm-C Chebyshev low-pass filter is presented as channel selection filter for reconfigurable multi-mode wireless receivers. Low-noise technologies
We report a simple and compact all-fiber laser system that is capable of generating widely tunable femtosecond pulses from 1.6 to 2.32 μm. The pulses are produ
An adaptive modulation system for a liquid crystal(LC) phase modulator is demonstrated. The phase retardation may be modulated by resetting the driving voltage