The bending-loss and dispersion-sensitivity characteristics of a dispersion-shifted dual-shape core fiber with an α-index center core are described. Calculations show that these characteristics can be improved by decreasing α and that a bend-optimized, dual-shaped core fiber exhibits a small bending loss and a large mode field diameter.
© 1987 Optical Society of America
Nobuo Kuwaki, Masaharu Ohashi, Chihaya Tanaka, and Naoshi Uesugi, "Characteristics of a dual-shape core fiber with an α-index center core," Opt. Lett. 12, 631-633 (1987)