This book presents the design of an index guided highly birefringent photonic crystal fiber which promises to yield very large birefringence at 1550 nm and 1064 nm as well as large effective nonlinearity. Optical supercontinuum generation in the proposed fiber using a 1064 nm pump source with peak power of 1kW has been also discussed. Finite difference time domain method (FDTD) has been employed to examine the optical properties such as fiber birefringence, mode field, V-parameter, walk-off and optical nonlinearity, while the Split-step Fourier method is used to solve the nonlinear Schrödinger equation felicitating the study of supercontinuum generation.