G - Physics – 02 – B
Patent
G - Physics
02
B
88/97
G02B 6/02 (2006.01)
Patent
CA 1269262
ABSTRACT OF THE DISCLOSURE A 1.5 µm zero dispersion single mode optical fiber comprising a center core, a side core disposed on an outer side of the center core and having a refractive index lower than that of the center core, and a cladding portion disposed on an outer side of the side core. Each of the refractive indices of the center core and the side core has a step-like profile in the direction of the radius of the optical fiber. The bending loss is low. The mode field diameter can be increased without deteriorating the bending loss, the splice loss and can be reduced. The chromatic dispersion varies only to a small extent with respect to changes in the core diameter, so that the zero dispersion wavelength can be well controlled.
517258
Kuwaki Nobuo
Ohashi Masaharu
Seikai Shigeyuki
Tanaka Chihaya
Uesugi Naoshi
Nippon Telegraph & Telephone Corporation
R. William Wray & Associates
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