Determination of structural parameter variations in single-mode optical fibres by time-domain reflectometry
نویسندگان
چکیده
منابع مشابه
Optical fiber ring resonator characterization by optical time-domain reflectometry.
A novel method for characterization of optical fiber resonators by an optical time-domain reflectometry (OTDR) technique is reported. This easy-to-use technique yields accurate results for cavity lengths ranging from a few meters to several kilometers. A simple relationship is established between the round-trip cavity loss and the position where the OTDR signal is maximum. The value obtained fo...
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Magnetooptic Faraday rotation in a strongly twisted singlemode fiber is measured using polarization-optical time domain reflectometry (POTDR) in which a light pulse of 904 nm wavelength makes a roundtiip along the fiber. The experimental results are in good agreement ,with the calculations, and the Verdet constant thus obtained is 0.86 X 10" min/G. cm at h = 904 nm. T HE Faraday rotation of pol...
متن کاملTime Domain Reflectometry ( TDR )
This chapter represents the state of the art at the time of release. Readers are encouraged to consult the link below for the version of this chapter with the most recent release date:
متن کاملOptimal detection bandwidth for phase-sensitive optical time-domain reflectometry
The spectrum of the temporal traces obtained from a phase-sensitive optical time-domain reflectometer is theoretically and experimentally analysed, demonstrating its dependence on the incident optical pulse shape. Numerical simulations and theoretical results are validated experimentally, showing a good matching for rectangular optical pulses. The influence of the photodetector bandwidth on the...
متن کاملSynthetic Spectrum Approach for Brillouin Optical Time-Domain Reflectometry
We propose a novel method to improve the spatial resolution of Brillouin optical time-domain reflectometry (BOTDR), referred to as synthetic BOTDR (S-BOTDR), and experimentally verify the resolution improvements. Due to the uncertainty relation between position and frequency, the spatial resolution of a conventional BOTDR system has been limited to about one meter. In S-BOTDR, a synthetic spect...
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ژورنال
عنوان ژورنال: Electronics Letters
سال: 1982
ISSN: 0013-5194
DOI: 10.1049/el:19820332