Patent ID: 8103143
Filing Date: 2012-01-24
Classification: G02B

Abstract:
1. A single-mode optical fiber, comprising: a central core having an index difference Dn a first intermediate cladding having an index difference Dn a first depressed cladding having an index difference Dn a second intermediate cladding having an index difference Dn a second depressed cladding having a negative index difference Dn wherein, at a wavelength of 1310 nanometers, the optical fiber has a mode field diameter (MFD) between about 8.6 microns and 9.5 microns; wherein, at a wavelength of 1625 nanometers, the optical fiber has bending losses of about 0.1 dB/10 turns or less for a bending radius of 15 millimeters; and wherein, at a wavelength of 1625 nanometers, the optical fiber has bending losses of about 0.5 dB/turn or less for a bending radius of 7.5 millimeters.