Reliable TWDM Optical Network Architecture With Multilevel Fault Correction Capability

In this work, we address the Time-Wavelength Division Multiplexed (TWDM) network with multilevel fault correction capability. The network can also serve geographically challenging locations, where either laying out of optical fiber is expensive, difficult or more prone to the faults. In such scenarios, the Free Space optics (FSO) and Radio Frequency (RF) links can be integrated with the fiber links.