Patent ID: 6879763
Filing Date: 2005-04-12
Classification: G02B

Abstract:
1. A reverse dispersion optical fiber provided with: a center core, a first side core formed at an outer circumference of said center core, a second side core formed at an outer circumference of said first side core, and a cladding layer formed at an outer circumference of said second side core; wherein an effective core area is at least 50 μm a dispersion value at a wavelength of the 1.55 μm band is not more than −10 ps/nm/km, a cutoff wavelength is not more than 1500 nm, a bending loss at 20 mmΦ is not more than 10 dB/m, a transmission loss at a wavelength of the 1.55 μm band is not more than 0.30 dB/km, and a polarization mode dispersion is not more than 0.10 ps/km