Title :
Pulse excitation scheme for the analysis of wide-band characteristics of optical waveguides
Author :
Yamauchi, J. ; Sasaki, S. ; Nakano, H.
Author_Institution :
Fac. of Eng., Hosei Univ., Tokyo, Japan
Abstract :
A new pulse excitation scheme using a Fourier series is proposed to analyze the wide-band response of optical waveguides. To validate the scheme, a waveguide with high-reflection coatings and a waveguide grating are analyzed using the finite-difference time-domain method. Calculation shows that the transmissivity and reflectivity can be evaluated by a one-time solution over a wide wavelength range of 0.5-2.0 μm (two octaves).
Keywords :
Fourier series; diffraction gratings; finite difference time-domain analysis; high-speed optical techniques; optical films; optical waveguide theory; reflectivity; 0.5 to 2.0 mum; Fourier series; finite-difference time-domain method; high-reflection coatings; optical waveguides; pulse excitation; reflectivity; transmissivity; waveguide grating; wide-band characteristics; Coatings; Finite difference methods; Fourier series; Gaussian processes; Gratings; Optical pulses; Optical waveguides; Reflectivity; Time domain analysis; Wideband; Finite-difference time-domain (FDTD) methods; high-reflection (HR) coatings; optical waveguides; pulse analysis; waveguide grating;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.839020
