Designing a Highly Nonlinear Normally Dispersive Optical Fiber for Efficient Parabolic Pulse Generation

Abstract

A highly nonlinear silica based multi-cladded step index dispersion compensating fiber (HN-DCF) is designed in such a way that it possesses a very small effective area when compared with standard silica based fibers. It is seen that when input Gaussian pulses are passed through the proposed fiber, perfect parabolic similaritons are generated at smaller optimum length even in the presence of higher order dispersion and nonlinearity. Therefore the proposed fiber can be treated as best choice for parabolic pulse generation with less input power requirement in comparison to standard normal dispersion fibers.