From the above it was given that the nonlinearity makes the frequency-mixing output signals shift and undulate,and its main factors are the perfection degree of the optical system adjustment and the polarization splitting degree.

In the experiments of Rayleigh laser guide star (LGS) for adaptive optics on altazimuth Coudé telescope, the technology of LGS launched and received in the common aperture using polarizing beam splitting scheme is researched.

Method The rat primary cultured neurons were damaged by glutamic acid,the membrane lipids fluidity was studied with fluorescence polarization(P) and mean microviscosity(η) with DPH as a probe;the protective effects of puerarin on this model were evaluated by lactate dehydrogenase(LDH) efflux assay and colormetric MTT assay.

Research on the influence of the source degree of polarization on the bias stability of interference fiber optical gyroscope;