Title :
Optical fiber component characterization by high-intensity and high-spatial-resolution interferometric optical-time-domain reflectometer
Author :
Kobayashi, Masaru ; Taylor, Henry F. ; Takada, Kazumasa ; Noda, Juichi
Author_Institution :
NTT Opto-Electron. Lab., Ibaraki, Japan
fDate :
6/1/1991 12:00:00 AM
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 :
fibre optics; light interferometry; optical couplers; optical testing; time-domain reflectometry; Rayleigh scattered light power; fiber component characterization; fiber coupler; high-intensity; high-spatial-resolution interferometric optical-time-domain reflectometer; low-coherence interferometer; modal birefringence; narrowband detections; polarization-maintaining fiber; reflectance profiles; Light scattering; Narrowband; Optical devices; Optical fiber couplers; Optical fiber polarization; Optical fibers; Optical interferometry; Optical scattering; Rayleigh scattering; Spatial resolution;
Journal_Title :
Photonics Technology Letters, IEEE
