Optical fiber component characterization by high-intensity and high-spatial-resolution interferometric optical-time-domain reflectometer
- 1 June 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (6), 564-566
- https://doi.org/10.1109/68.91036
Abstract
An interferometric optical-time-domain reflectometer (OTDR) is demonstrated. A low-coherence interferometer is used and balanced and narrowband detections are performed. The reflectometer has a detectable limit of -130 dB (which is 10 dB lower than the Rayleigh scattered light power in the fiber) and a spatial resolution of 20 mu m. The modal birefringence of a polarization-maintaining fiber and the coupling characteristics of a fiber coupler are successfully measured from their reflectance profiles.<>Keywords
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