In this paper

a novel high birefringence Photonic Crystal Fiber（PCF）is proposed and its birefringence

dispersion

nonlinearity

confinement loss and mode field numerically analyzed.The study shows that when its structural parameters are optimized

its birefringence value is 2.36×10-2

negative dispersion value-7 740ps/（km·nm）

and the nonlinear coefficient is 56km-1·W-1

the corresponding area of mode field 2.17μm2

and the confinement loss in the fundamental mode is only 0.10dB/km at wavelength of 1.55μm

while its dispersion slope fluctuates between-21.9

-

23.5ps/（km·nm2） over the C band.This type of fiber will be widely applied in fiber lasers

fiber amplifiers and optical filters and sensors in the future.