Spatially resolved measurement of chromatic dispersion and Brillouin shift along single-mode optical fibers
We present a new technique for simultaneous measurement of chromatic dispersion and Brillouin shift distribution along conventional, single-mode optical fibers used in telecommunications. It is based on performing Brillouin Optical Time Domain Analysis (BOTDA) over the four-wave mixing generated by two low-power pumps ( less than or equal 10 mW). Unlike others, this technique can measure any arbitrary value of dispersion. With the use of this technique we have obtained consistent, high-resolution and low-noise measurements for both magnitudes. Our measurements indicate a certain correlation between the spatial distribution of both quantities, although the degree of correlation varies for the different manufacturers tested.
Nanophotonics and Metrol. Laboratory, Ecl. Polytech. Federale de Lausanne, Lausanne CH-1015, Switzerland Compilation and indexing terms, Copyright 2008 Elsevier Inc. 04448432933 Chromatic dispersion Brillouin shift Brillouin optical time domain analysis (BOTDA) Fiber spools
Record created on 2008-09-29, modified on 2016-12-05