Title :
Bend loss of slab and fiber modes computed with diffraction theory
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
12/1/1993 12:00:00 AM
Abstract :
Radiation losses from optical waveguides that are bent into a circle are calculated with the help of Fraunhofer´s diffraction theory. The validity of the result is tested by showing that it is in agreement with the known bend loss formulas of the slab waveguide of the LP01 -mode of the round step-index fiber. The accuracy of the bend loss calculations is limited by the use of a scalar theory to approximate a vector problem and by additional mathematical approximations that are required to solve an integral
Keywords :
bending; light diffraction; optical fibre theory; optical losses; optical waveguide theory; Fraunhofer´s diffraction theory; LP01-mode; accuracy; diffraction theory; fiber modes; integral; mathematical approximations; optical waveguides; radiation losses; round step-index fiber; scalar theory; slab waveguide; vector problem; Dielectric losses; Near-field radiation pattern; Optical diffraction; Optical fiber losses; Optical fiber testing; Optical fiber theory; Optical losses; Optical waveguide theory; Optical waveguides; Slabs;
Journal_Title :
Quantum Electronics, IEEE Journal of
