A dispersion compensating fiber has a negative chromatic dispersion slope and a value of chromatic dispersion suitable for practical application, and a bending loss thereof with a bending diameter of 40 mm is smaller than 0.01 dB/m at 1.55 .mu.m. A diameter of a core is larger than 3 .mu.m but smaller...http://www.google.de/patents/US5555340?utm_source=gb-gplus-sharePatent US5555340 - Optical transmission system with dispersion compensating optical fiber
