Abstract
Dispersion-compensating fibers (DCFs) with large negative chromatic dispersion in the 1.55-µm region are attractive for upgrading 1.3-µm-optimized transmission lines using erbium-doped fiber amplifiers.1 For putting DCFs into practical use, a figure of merit (FOM), which is defined as a ratio of the absolute value of the chromatic dispersion to the transmission loss at 1.55 µm, should be enhanced. In this paper an optimum range of the refractive index of the core for maximization of the FOM is investigated for the matched-cladding-type profile,2 and a DCF with a FOM of 250 ps nm−1dB−1 is presented. An analog transmission experiment using this DCF is also demonstrated.
© 1994 Optical Society of America
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