OPTICAL FIBRE

摘要

Disclosed is an optical fibre comprising a core section which encloses and thereby guides light, and a cladding section which is formed at the outer periphery of the core section. The cladding section comprises holes that reduce micro-bend losses in the core section and are formed at locations separated from the core section by a distance such as to have substantially no effect on an effective core cross-sectional area or wavelength dispersion characteristics in the core section. Preferably, the ratio of the difference between the value of the effective core cross-sectional area or wavelength dispersion characteristic of the optical fibre and the value of the effective core cross-sectional area or wavelength dispersion characteristic when the holes in the optical fibre are not provided, and the value of the effective core cross-sectional area or wavelength dispersion characteristicwhen the holes are not provided is within ±10%. As a result, an optical fibre is provided having a high degree of freedom in terms of optical design and manufacturing properties.