The power transmitted by surface waveguide modes propagating along a semi-infinite dielectric fiber is determined. For a plane wave normally incident on the end of a perfectly circular fiber only the HE<sub>1m</sub> modes are excited. Of these modes the majority of the power is contained in the HE<sub>11</sub> mode. Far above the cutoff conditions for the HE<sub>13</sub> mode, approximately 99.8% of the incident power is contained in the HE<sub>11</sub>, HE<sub>12</sub>, and HE<sub>13</sub> modes.
A. W. SNYDER, "Surface Waveguide Modes Along a Semi-Infinite Dielectric Fiber Excited by a Plane Wave," J. Opt. Soc. Am. 56, 601-605 (1966)