Radiation modes in arbitrary dielectric waveguides with homogeneous cladding can be split into a free-space field having its sources at infinity and a scattered field excited by the polarization of the core region. In a recent paper, Sammut [ J. Opt. Soc. Am. 72, 1335 ( 1982)] stated that radiation modes have the same orthogonality properties as their free-space parts in lossless waveguides. An alternative derivation is established, and connection with earlier work is also reviewed.
© 1983 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
Rowland A. Sammut
J. Opt. Soc. Am. 72(10) 1335-1337 (1982)
J. Opt. Soc. Am. 69(2) 311-316 (1979)
Dennis P. Nyquist, Dean R. Johnson, and S. Victor Hsu
J. Opt. Soc. Am. 71(1) 49-54 (1981)