Ultra-low-loss (0.1484 dB∕km) pure silica core fibre and extension of transmission distance

Abstract

A pure silica core fibre with unprecedented low-loss of 0.1484 dB/km has been successfully fabricated. With a large effective area of 118 µm2, this ultra-low-loss fibre extends transmission distance by 33% compared to conventional Ge-SMF, and over 400 km distance transmission is possible with Raman amplification.