Modal characteristics of graded multilayer optical waveguides

The modal characteristics of graded-step index multilayer planar waveguides for layer thicknesses down to those applicable for quantum well structures have been investigated here. The effects of linear grading of the transverse stepped refractive index profile have been evaluated in terms of the mod...

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Veröffentlicht in:	Journal of lightwave technology 1996-05, Vol.14 (5), p.894-900
Hauptverfasser:	Thompson, C., Weiss, B.L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Integrated optics. Optical fibers and wave guides Nonhomogeneous media Nonlinear optics Optical and optoelectronic circuits Optical planar waveguides Optical refraction Optical surface waves Optical variables control Optical waveguides Quantum well devices Refractive index Semiconductor waveguides
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Zusammenfassung:	The modal characteristics of graded-step index multilayer planar waveguides for layer thicknesses down to those applicable for quantum well structures have been investigated here. The effects of linear grading of the transverse stepped refractive index profile have been evaluated in terms of the mode field profiles and the modal spectrum. The position of the maximum of the fundamental mode field profile can be moved toward the upper waveguide cladding/core interface with consequential increase in the evanescent field magnitudes.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/50.495174