… the modes of an optical waveguide with … waveguide to be multimoded or the refractive index
profile to vary “slowly.” Our procedure, called the n co ≅ n cl method, applies to waveguides …

… We consider in detail the proper and improper TE modes on slab waveguides so as to
introduce the variety of waves that are observable on more complicated slab and circular guides. …

… Here we describe the formation of modes with the ray picture in the slab waveguide [1],
as shown in Fig. 1.2. Let us consider a plane wave propagating along the z-direction with …

… on both sides of the waveguide, and (4) Evanescent modes : Their fields decay exponentially
… lossless waveguide, the energy of an evanescent mode radiates away from the waveguide …

… the possible TE and TM modes are given and the properties of the modes are discussed. …
m = 0 mode is at I z I < d/2, while that in the m = 4 mode is at I z I "" 2d. For the TM modes, if we …

… mode theory (CMT) for optical waveguides is reviewed, with emphasis on the analysis of
coupled optical waveguides… of the CMT for coupled optical waveguides is given. Issues raised …

… There are many optical waveguide problems for which exact mode solutions are not
available. The variational principle provides a powerful tool for the numerical solution of these …

… of the etched side walls of the optical waveguide. … to optical waveguides, we can now
confidently apply this technique to various arbitrarily shaped and inhomogeneous optical guides. …

… optical waveguide supports leaky modes in addition to the well-known bound modes. Leaky
… Here we find the number of modes in each category that can propagate on a particular …

… A mode, in this sense, is a spatial distribution of optical energy in one or more … of optical
modes in a waveguiding structure is discussed qualitatively, and key results of waveguide theory …