OPTICAL FIBER AND OPTICAL DEVICE EMPLOYING IT

摘要

An optical fiber having such a structure as achieving high non-linearity over a wide band and generating SC light efficiently. The optical fiber at least has a central core region, and an external clad region provided on the outer circumference of the central core region and having a refractive index lower than that of the core region. As features for light of wavelength ?1 included in the wavelength range of 1520nm-1620nm, the optical fiber has a wavelength dispersion from -2ps/nm/km to +2ps/nm/km, a dispersion slope from -0.009 ps/nm<SUP>2</SUP>/km to +0.009 ps/nm<SUP>2</SUP>/km, and a quaternary dispersion from -1.8×10<SUP>-4</SUP> ps/nm<SUP>3</SUP>/km to +1.8×10<SUP>-4</SUP> ps/nm<SUP>3</SUP>/km.