Title :
Analysis of a lensed coreless fiber by a hybrid technique combining FD-BPM and FD-TDM
Author :
Yamauchi, Junji ; Nishio, Koji ; Nakano, Hisamatsu
Author_Institution :
Coll. of Eng., Hosei Univ., Tokyo, Japan
fDate :
3/1/1998 12:00:00 AM
Abstract :
A technique connecting a scalar wide-angle finite-difference beam-propagation method (FD-BPM) with a scalar finite-difference time-domain method (FD-TDM) is systematically described and used to analyze a lensed coreless fiber. The propagating field and its phase distribution are calculated to demonstrate the phase adjustment effect of the lens. The power concentration due to the lens is evaluated by the directive gain used in the antenna engineering. The effect of an antireflection coating on the reflected power is also evaluated
Keywords :
antireflection coatings; finite difference time-domain analysis; lenses; optical fibre theory; optical films; FD-BPM; FD-TDM; antenna engineering; antireflection coating; directive gain; hybrid technique; lens; lensed coreless fiber; phase adjustment effect; phase distribution; power concentration; propagating field; reflected power; scalar finite-difference time-domain method; scalar wide-angle finite-difference beam-propagation method; Equations; Finite difference methods; Lenses; Optical beams; Optical fiber polarization; Optical fibers; Optical propagation; Optical scattering; Optical waveguides; Time domain analysis;
Journal_Title :
Lightwave Technology, Journal of
