Deterioration of the signal-to-noise ratio (SNR) is an important challenge in ultra-long multi
optical line system (OLS) optical transmission systems. The non-uniform gain and cascading …

Optical communication networks (OCNs) provide promising and cost-effective support for the
ultra-fast broadband solutions, thus enabling them to address the ever growing demands of …

In this paper, we present a new method for optical signal-to-noise ratio (OSNR) equalization
of wavelength division multiplexed (WDM) channels at the end of a cascade of several …

The signal quality degradation, which occurs due to the aspects of fiber attenuation, splitter
switch, and amplified spontaneous noise in erbium-doped fiber amplifier, may substantially …

Power compensation is the main challenging issue for dense optical communication system
because it affects the signal strength, and subsequently, performances of the received …

Orbital angular momentum (OAM) mode-division multiplexing (MDM) is a key technique to
achieve ultra-high-capacity optical fiber communications. However, the high nonlinear …

In optical transport networks, Dynamic Gain Equalizers (DGE) are typically used at each link.
A DGE selectively attenuates the channels to compensate the cumulative Erbium Doped …

According to the present passive optical network (PON) standard, the fiber transmission
lengths are from 500m to 20km between the optical line terminal (OLT) and different optical …

Wavelength-dependent power excursions in gain-controlled erbium doped fiber amplifiers
(EDFA) is a challenging issue in optical networks. We investigate a launch channel power …

For the future high-speed next-generation Ethernet passive optical network (NG-EPON)
system, the low-cost system could be kept by adopting low bandwidth devices. To …