Dual wavelength high-frequency chaos based on nonlinear effects is generated in an erbium-doped fibre ring laser,where tunable filters (TFs) are used to select
We study the effect ofγ-ray beaming on γ-ray emission of the pulsars in a self-sustained outer gap model. In this model, averaged γ-ray flux is a function of
We report a fibre amplifier array that not only achieves coherent beam combination by compensation of phase noises of fibre amplifier, but also accomplishes cor
A novel method to measure acoustic power of focusing transducer based on the self-reciprocity theorem of con vergent spherical acoustic wave is proposed. The pe