Title :
Slowly varying envelope simulation of optical waves in time domain with transparent and absorbing boundary conditions
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
10/1/1997 12:00:00 AM
Abstract :
A method to simulate the time-varying envelope of optical fields in optoelectronic devices is described. This is potentially more efficient than computing the field with the fast carrier, and offers an explicit way to arrive at the steady-state fields. Further, a slowly varying envelope approximation (SVEA) permits the use of many time propagation schemes for different advantages. Boundary conditions and source excitation are compared for the exact formulation and slowly varying envelope approximation using Taylor expansion and leapfrog-based propagators
Keywords :
approximation theory; boundary-value problems; electromagnetic wave absorption; electromagnetic wave scattering; finite difference time-domain analysis; light absorption; optical waveguide theory; optical waveguides; optoelectronic devices; Taylor expansion; absorbing boundary conditions; boundary conditions; fast carrier; leapfrog-based propagators; optical fields; optical waveguide theory; optical waves; optoelectronic devices; slowly varying envelope approximation; slowly varying envelope simulation; source excitation; steady-state fields; time domain; time propagation schemes; time-varying envelope; transparent boundary conditions; Boundary conditions; Computational modeling; Equations; Finite difference methods; Optical devices; Optical propagation; Optical scattering; Optoelectronic devices; Steady-state; Time domain analysis;
Journal_Title :
Lightwave Technology, Journal of
