Open AccessKerr-type spatial optical solitons in planar waveguides with finite width and the design of all optical devices
Author(s) -
Yiming Xiao,
Qi Guo
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.923
Subject(s) - planar , waveguide , optics , physics , beam (structure) , beam propagation method , paraxial approximation , soliton , wavelength , optical power , power (physics) , demultiplexer , beam diameter , multiplexing , refractive index , nonlinear system , telecommunications , laser beams , multiplexer , computer graphics (images) , quantum mechanics , computer science , laser
The propagation of paraxial light beams injected at an inclined angle in a planar waveguide with finite width is studied by numerical method. The soliton beams with different wavelength and same widthif their incident point and incident slanting angle are the samewill propagate along the same periodic Z-type route in the planar waveguide. With the power of the beam increasingthe distance between two adjacent reflecting points will become longer and longer with the propagation distance and the Z-type route will lose its periodicity. When the power of a beam become fairly strongthe beam will propagate along z direction of the waveguideand will no longer be reflected back and forth between the two boundaries of the planar waveguide. Using the characteristic that a beam injected at an inclined angle in the waveguide will propagate along different route with different powera power switch and an optical time division demultiplexer are designed.