Title :
Far-field radiation of optical fibers with tapered end
Author :
Massaro, Alessandro ; Pierantoni, Luca ; Rozzi, Tullio
Author_Institution :
Dipt. di Elettromagnetismo e Bioingegneria, Univ. Politecnica delle Marche, Ancona
Abstract :
In this paper, an accurate model of the far-field radiation of a tapered optical fiber, which is widely used in communication optics and biomedical tomography, is presented. The authors first analyze the far field that is radiated from the normally cut fiber then extend the model to a fiber with a tapered end by considering the different phase contributions of the emitted rays. The proposed technique shows the effects of the cut with a view of obtaining a high efficiency both in coupling and radiation pattern characteristics
Keywords :
optical fibre couplers; optical fibre theory; far-field radiation; phase contribution; tapered optical fiber; Biomedical optical imaging; Optical fiber communication; Optical fiber couplers; Optical fiber polarization; Optical fibers; Optical interferometry; Optical pumping; Optical sensors; Optical waveguides; Tomography; Biomedical applications; coupling efficiency; far-field radiation; fiber-to-fiber coupler; tapered fiber;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.878014
