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.


Published in:
Second European Workshop on Optical Fibre Sensors, 5502, 468-471
Presented at:
Santander, Spain
Year:
2004
Publisher:
International Society for Optical Engineering, Bellingham, WA 98227-0010, United States
Keywords:
Note:
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
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 Record created 2008-09-29, last modified 2018-03-18

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