Chromatic dispersion in an optical fiber is the limiting factor in achieving very high-bandwidth communications systems. Several techniques are available for measuring dispersion; for a review see Ref. 1. However, only interferometric techniques have the ability to obtain a resolution of >1 ps km−1 nm−1 for short, ~ 1-m, lengths of fibers. The ability to make dispersion measurements in short lengths of fiber is very important since it enables economic storage of fibers to test for any effects associated with aging, determination of the quality of the draw perform, and testing of short lengths of new or experimental fibers.

© 1988 Optical Society of America

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