Modeling of optical waveguide poling and thermally stimulated discharge (TSD) charge and current densities for guest/host electro-optic polymers

• Published in: IEEE journal of quantum electronics Vol. 40; no. 11; pp. 1555 - 1561
• Main Authors: Watson, M.D., Ashley, P.R., Abushagur, M.A.G.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-11-2004; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Charge measurement; Circuit properties; Current density; Current measurement; Density measurement; Dielectric measurements; Electric, optical and optoelectronic circuits; Electrodes; Electronics; Exact sciences and technology; Integrated optics. Optical fibers and wave guides; Optical and optoelectronic circuits; Optical polarization; Optical polymers; Optical waveguides; Stimulated emission; Charge density; Thermostimulated conduction; Dielectric materials; Poled material; Electrooptical material; Polymer; Optical waveguide; Electric field effect; Experimental study; Current density
• ISSN: 0018-9197; 1558-1713
• DOI: 10.1109/JQE.2004.835116

A charge density and current density model of a waveguide system has been developed to explore the effects of electric field electrode poling. An optical waveguide is modeled during poling by considering the dielectric charge distribution, polarization charge distribution, and conduction charge generated by the poling field. The charge distributions are the source of poling current densities. The model shows that boundary charge current density and polarization current density are the major source of currents measured during poling and thermally stimulated discharge measurements. Charge distributions provide insight into the poling mechanisms and are directly related to E/sub A/ and /spl alpha//sub r/. Initial comparisons with experimental data show excellent correlation to the model results.