Title :
Deterioration of taper lens performance due to taper asymmetry
Author :
Hillerich, Bernd ; Guttmann, Joachim
Author_Institution :
AEG AG, Ulm, West Germany
Abstract :
The influence of rotationally asymmetrical, i.e. bent drawn, fiber tapers on the coupling performance of taper lenses used for laser diode- or LED-to-single-mode-fiber coupling is investigated. It is found by experiments that the lateral offset of the taper tip with respect to the fiber axis should be below approximately=6 mu m if a significant increase in coupling loss is to be avoided. The experimental results are interpreted by numerical simulations applying the beam propagation method.<>
Keywords :
lenses; numerical analysis; optical couplers; optical fibres; optical losses; beam propagation method; coupling loss; coupling performance; laser diode; light emitting diodes; numerical simulations; rotationally asymmetrical fibres; taper asymmetry; taper lens performance; Diode lasers; Fiber lasers; Laser beams; Laser feedback; Lenses; Numerical simulation; Optical coupling; Optical feedback; Optical propagation; Production;
Journal_Title :
Lightwave Technology, Journal of
