Title :
A simple method for loss and coupling ratio determination in fused fiber couplers
Author :
Olsson, Bengt-Erik ; Andrekson, Peter A.
Author_Institution :
Dept. of Optoelectron. & Electr. Meas., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
3/1/1996 12:00:00 AM
Abstract :
A simple interferometric method is presented to measure the coupling ratio as a function of wavelength of an equal splitting fused fiber coupler. The coupling ratio can be determined to 0.5/spl plusmn/0.0005 and by also measuring the excess loss it is possible to determine the actual loss in each optical path in the coupler.
Keywords :
light interferometry; optical fibre couplers; optical fibre losses; optical fibre polarisation; optical fibre testing; actual loss; coupling ratio; coupling ratio determination; equal splitting fused fiber coupler; excess loss; fused fiber couplers; interferometric method; optical fiber loss measurement; optical path; Fiber nonlinear optics; Loss measurement; Nonlinear optics; Optical coupling; Optical fiber couplers; Optical fiber polarization; Optical interferometry; Optical losses; Sagnac interferometers; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
