Abstract

We consider the nature of modes in a multilayered guide with a linear core surrounded by nonlinear cladding layers. Neglecting transverse effects we show that a class of asymmetric modes characteristic of nonlinearities of cladding layers can exist in the guide. Absorption¹ is included in the analysis. Explicit numerical results with field profiles are presented. It is found that these modes require a threshold flux density for the waves to propagate. The stability¹ of these modes with respect to propagation in the guides is investigated. Potential uses are indicated.

© 1989 Optical Society of America