In order to look for track

which improve image quality of Fourier-Domain OCT (FDOCT)

In this paper multi-layered turbid media is used. A FDOCT model is set up. Only single scattering is included and the illuminating light is infinite narrow beam. It is hard to obtain the exact solution of integrated scattering equation

for nth scattering brings to complex 3n integration. The simulation results indicate that two kinds of photons are different on spatial distribution. Multiple backscattering photons can be rejected by limiting the detection area and more single backscattering photons are received. Then discuss the differences between Time-Domain OCT (TDOCT) and FDOCT through theory and simulation

and further confirm the advantage of FDOCT. The simulation results are considered to be important guidance of experiments. The gray level of complexed bio-tissue image resulting from intensity reduction is approximately compensated through changing the model's structure.