High Capacity, Low Latency Data Transmission Using Hollow Core-Photonic Bandgap Fibers

Abstract

Abstract:We discuss our recent progress in hollow core-photonic bandgap fiber fabrication for high capacity transmission, focusing on two key areas: longitudinal uniformity and length upscaling as well as reviewing highlight results in data transmission.

Fibre devices enabled by hollow core fibre technology

“…A transmitted long wavelength of 2 µm with 4.5 dB/km loss was reported in 2012, and the fibre is around 300 m long with a transmission bandwidth of 152 nm [25]. A long fibre length of 11 km was achieved with bandwidth exceeding 200 nm, and with 5.2 dB/km loss at 1550 nm wavelength in 2016 [26]. The HC-PBGF confinement loss cannot be infinitely close to its theoretical limit, which is due to the finite number of cladding air holes, surface scattering loss and overlap of core mode area with cladding [27,28].…”

“…Figure 1.2: Cross-section images of the HC-PBGFs reported in (a) [24], (b) [25] and (c) [26]. optical fibres, the PBGFs rightfully find a large number of possibilities for many functions, such as polarisation maintaining, dispersion tailoring, ultrahigh nonlinearities, large mode area fibres, gas sensing and gas laser cells.…”