摘要
We numerically demonstrate a high-nonlinearity single-mode holey fiber with flattened dispersion around the Ti-Za laser band at 800 nm. The dispersion profile of the fiber has the shape of a quadratic curve, which reaches its maximum 5.96 ps·km^-1·nm^-1 at 800hm and its minimum -0.897 ps·km^-1·nm^-1 at both 750 and 850 nm. The nonlinear coefficient is 170 W^-1 km^-1 at 800nm and no higher order modes exit. A six-layer air-hole cladding ensures a loss less than 0.067 db/m in the 750 to 850 nm range. Two more air-hole rings will reduce the loss to below 0.1 db/km.
We numerically demonstrate a high-nonlinearity single-mode holey fiber with flattened dispersion around the Ti-Za laser band at 800 nm. The dispersion profile of the fiber has the shape of a quadratic curve, which reaches its maximum 5.96 ps·km^-1·nm^-1 at 800hm and its minimum -0.897 ps·km^-1·nm^-1 at both 750 and 850 nm. The nonlinear coefficient is 170 W^-1 km^-1 at 800nm and no higher order modes exit. A six-layer air-hole cladding ensures a loss less than 0.067 db/m in the 750 to 850 nm range. Two more air-hole rings will reduce the loss to below 0.1 db/km.
基金
Supported by the National Natural Science Foundation of China under Grant No 60637010 and by the Science Foundation of Yanshan University for the Excellent PhD Students
