This text investigates the fundamental electromagnetic principles and mathematical frameworks governing the propagation of light within planar optical waveguides and optical fibers. H. G. Unger, a distinguished researcher in the field of electromagnetic theory, provides a rigorous analytical approach to understanding wave propagation, mode coupling, and signal attenuation. The book synthesizes complex Maxwellian equations into practical models for designing and evaluating high-frequency optical transmission systems.

Experts recognize this work as a foundational text for students and researchers specializing in fiber optics and integrated photonics. Readers frequently note the high level of mathematical density and the rigorous analytical approach required to fully grasp the presented physical models.