5 March 1993 Study of near- and far-field two-lobe patterns outside the output endface of a two-mode fiber
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Proceedings Volume 1795, Fiber Optic and Laser Sensors X; (1993) https://doi.org/10.1117/12.141243
Event: Fibers '92, 1992, Boston, MA, United States
Abstract
The behaviors of the near- and far-field two-lobe radiation patterns from a circular-core two- mode fiber are studied by using both the mode and Kirchhoff diffraction theories. The electric field outside the output endface of the fiber is derived from the electric field distribution of the LP01 and LP11 modes at the fiber endface using the Kirchhoff diffraction formula. Different phenomena are studied by solving this expression numerically at near- and far-fields. The Gouy phase shifts are quantitatively evaluated at cross-sections of the near field. The results reveal the distortion and dislocation of the far-field two-lobe pattern induced by an inclination angle of the fiber endface.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anbo Wang, George Z. Wang, Richard O. Claus, "Study of near- and far-field two-lobe patterns outside the output endface of a two-mode fiber", Proc. SPIE 1795, Fiber Optic and Laser Sensors X, (5 March 1993); doi: 10.1117/12.141243; https://doi.org/10.1117/12.141243
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