Broadband tunable Raman soliton self-frequency shift to mid-infrared band in a highly birefringent microstructure fiber

Wang Wei^{1, 2, †,}, Bi Xin-Ying^{1, 2}, Wang Jun-Qi^{1, 2}, Qu Yu-Wei^{1, 2}, Han Ying^{1, 2}, Zhou Gui-Yao^{1, 2}, Qi Yue-Feng^{1, 2}

The effective mode area and nonlinear coefficient.