A comparison between SSMF and large-A(eff) Pure-Silica core fiber for ultra long-haul 100G transmission.

Low-Loss and Low-Nonlinearity Pure-Silica-Core Fiber for Large Capacity Transmission

To keep up with the exponential growth of data network traffic, large transmission capacity per a fiber is strongly needed for optical communication systems. Recent progress in the transmission capacity mainly relies on multi-level modulation techniques with digital coherent detection. However, the larger capacity transmission over long distance requires higher optical signal-to-noise ratio (OS...

Fiber Raman Amplification in Ultra-high Speed Ultra-long Haul Transmission: Gain Profile, Noises and Transmission Performance

Ultra Long Haul transmission and Reconfigurable OADMs for national-scale optical networks

New technologies such as Ultra Long Haul transmission (ULH) and Reconfigurable Optical Add-Drop Multiplexers (R-OADMs) seem set to transform the economics of optical core network architectures as they become commercially available. Together, they allow an important first step towards optical transparency by allowing transit traffic to pass without regeneration along chains of nodes. This paper ...

New Trends of Radio over Fiber Communication Systems for Ultra High Transmission Capacity

Radio-over-fiber (RoF) systems have been widely investigated due to such advantages of optical fiber as low loss, large bandwidth, and transparent characteristics for radio signal transmission. By utilizing RoF systems, various radio frequency (RF) signals including cellular services and wireless local area network (WLAN) signals can be efficiently distributed to densely populated areas or outd...

Multi-level Linecoding for Ultra-high Speed Long-haul Optical Fibre Communications Systems

The demands for greater spectral efficiency, higher line rate, higher channel count, greater amplifier/repeater spacing, Tb/s capacity DWDM long haul optical communication systems, efficient transmission of optical channels over long-haul optical fibre system is essential. Since the conventional Return to zero (RZ) and Non return to zero (NRZ) modulation formats suffer from dispersion and ineff...