Title :
Accurate reflectance and optical fibre backscatter parameter measurements using an OTDR
Author :
Blanchard, Patrick ; Zongo, P.H. ; Facq, P.
Author_Institution :
IRCOM-EOGI, Limoges, France
Abstract :
A method for accurate reflectance measurement is described. The technique introduces a variable attenuator in a recirculating loop to calibrate the reflection provided by a fictitious reflector. A formula for this calibrated reflection is given. The device allows accurate measurements of the backscatter parameter of a fibre.
Keywords :
backscatter; light scattering; optical fibres; optical variables measurement; reflectivity; time-domain reflectometry; OTDR; calibrated reflection; optical fibre backscatter parameter measurements; recirculating loop; reflectance measurement; variable attenuator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901329
