Title :
Real part determination OFDR with digital spatial filtering
Author :
Schlemmer, Bernd ; Winter, Andreas
Author_Institution :
VDI Technol. Center, Dusseldorf, Germany
Abstract :
This letter describes a method to suppress undesired reflections in an optical fiber signature measurement. The designed mathematical convolution algorithm in the frequency domain works simply and only makes use of the reflection complex-baseband frequency-response data. In frequency-domain measurements implementing the frequency dependent phase function, it is necessary to suppress undesired reflections in order to measure the distance of a spatial fault location exactly.<>
Keywords :
frequency response; optical fibre testing; optical links; reflectivity; OFDR; digital spatial filtering; frequency dependent phase function; frequency domain; frequency-domain measurements; mathematical convolution algorithm; optical fiber signature measurement; real part determination; reflection complex-baseband frequency-response data; spatial fault location; undesired reflections; Algorithm design and analysis; Convolution; Digital filters; Filtering; Frequency domain analysis; Frequency measurement; Optical fiber filters; Optical fibers; Optical reflection; Phase measurement;
Journal_Title :
Photonics Technology Letters, IEEE
