优化设计了一种四波混频用低色散高非线性光子晶体光纤，该光纤纤芯缺失一根空气柱，包层沿光纤长度方向排布为压缩六角点阵椭圆空气孔......

Hermite-Gaussian functions were used to calculate the dispersion of holey fibers, when pitch was more than 0.6 μm, ther......

A simple method to mechanically induce a long-period fiber grating (LPFG) by a grooved plate is improved. The transmissi......