Design and temperature analysis of ZDSF based on triangular graded-index single-mode optical fiber

In this paper, we design a zero-dispersion shifted fiber based on triangular core graded index single mode optical fiber and consider the transmission parameters fluctuations owing to environmental conditions variations such as temperature. The Transfer Matrix Method (TMM) developed in the cylindrical coordinate [1] is used to obtain the field distribution and guided modes. Meanwhile, design process consists of limited coordinate descent optimization method. In order to estimate the thermal coefficients, the model introduced in [2] is applied. It is found out that the propagation characteristics of the proposed graded index fiber have greater endurance against temperature fluctuations compared to the reported structures based on the multi-clad step index ones.