About KARASAWA N
About Chitose Inst. Sci. and Technol., Chitose, JPN
About IEEE Journal of Quantum Electronics
About calculus of finite difference
About finite differencl time domain method
About Optical waveguide,optical fibers,and fiber optics
About 周波数領域
About 有限差分法
About 光パルス
About 非線形伝搬
About コンピュータシミュレーション