Title :
Generalized effective index series solution analysis of waveguide structures with positionally varying refractive index profiles
Author :
Donnelly, Joseph P. ; Lan, S.D.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
6/1/1996 12:00:00 AM
Abstract :
The use of a generalized series solution technique for analyzing semiconductor integrated-optic waveguide devices is presented. This technique can be employed to obtain TE and TM modes for any slab-waveguide structure with an arbitrary index variation, as long as the square of the index in each layer can be fitted to a polynomial function of position. The method is applied to a slab waveguide with a parabolic index profile, an AlGaAs heterostructure electrooptic phase modulator, heterostructure ridge-waveguide structures with sloped sidewalls, and an InGaAs-AlGaAs graded-index separate-confinement-heterojunction quantum-well structure
Keywords :
electro-optical modulation; gradient index optics; integrated optics; optical waveguide theory; phase modulation; polynomials; refractive index; semiconductor quantum wells; AlGaAs; AlGaAs heterostructure electrooptic phase modulator; InGaAs-AlGaAs; InGaAs-AlGaAs graded-index separate-confinement-heterojunction quantum-well structure; TE modes; TM modes; arbitrary index variation; generalized effective index series solution analysis; generalized series solution technique; heterostructure ridge-waveguide structures; parabolic index profile; polynomial function; positionally varying refractive index profiles; semiconductor integrated-optic waveguide devices; slab waveguide; slab-waveguide structure; sloped sidewalls; waveguide structures; Laboratories; Optical devices; Optical refraction; Optical sensors; Optical variables control; Optical waveguides; Polynomials; Quantum well lasers; Refractive index; Semiconductor waveguides;
Journal_Title :
Quantum Electronics, IEEE Journal of