Wavelength Division Multiplexing (WDM) (original) (raw)

WDM Optical Communication Networks: Progress and Challenges

While optical-transmission techniques have been researched for quite some time, optical "networking" studies have been conducted only over the past dozen years or so. The field has matured enormously over this time: many papers and Ph.D. dissertations have been produced, a number of prototypes and testbeds have been built, several books have been written, a large number of startups have been formed, and optical WDM technology is being deployed in the marketplace at a very rapid rate. The objective of this paper is to summarize the basic optical-networking approaches, briefly report on the WDM deployment strategies of two major U.S. carriers, and outline the current research and development trends on WDM optical networks.

Performance Analysis and enhancement of WDM optical networks

IJAERD, 2018

In this digital era the communication demand has increased from previous eras due to introduction of new communication techniques. As we can see there is increase in clients day by day, so we need huge bandwidth and high speed networks to deliver good quality of service to clients. Fibre optics communication is one of the major communication systems in modern era, which meets up the above challenges. This utilizes different types of multiplexing techniques to maintain good quality of service without traffic, less complicated instruments with good utilization of available resources .Wavelength Division Multiplexing (WDM) is one of them with good efficiency. It is based on dynamic light-path allocation. Here we have to take into consideration the physical topology of the WDM network and the traffic. We have designed here an 8-channel WDM system and carried out detailed analysis to evaluate the dependencies of the performance evaluating parameters onto the various system parameters. This paper focuses on design of an multi channel WDM trans-receiver System and then optimizing its performance parameters. Simultaneously evaluation of dependencies of various performance evaluating parameters onto various system parameters was obtained. Moreover effect of optical amplification was obtained onto system performance.

Development of IP/WDM optical networks

Laser and Fiber-Optical Networks Modeling, 2001. Proceedings of LFNM 2001. 3rd International Workshop on, 2001

Optical wavelength-routed IP/MPLS networks could be a valid solution in the short time. Optical burst switching may represent an interesting method in the mid/long term. Optical packet switching can be seen as the last step of such an evolutionary path. To achieve satisfactory performance, significant efforts are required in developing key optical devices and components such as semiconductor optical amplifiers, optical gates and space switches, wavelength converters, fast tunable lasers and filters, and wavelength routers. Also some breakthroughs are needed in order to realize mature optical devices which allow dynamic buffering of optical packets

Architectures and technologies for wavelength division multiplexed access networks

2006

Optical fibre communication is very much preferred for the communication of signals over bandwidth of a gigabits per second over distances more than hundreds of kilometres. For a long period of time optical fibre communication has been about how to provide higher bandwidths with reduced cost per bit transmitted. However, this trend has changed from optical transmission to optical networking. By exploiting the wavelength division multiplexing (WDM) technology, optical networks have expanded from backbone networks to metropolitan and access networks to deliver high bandwidth services to the users in a seamless fashion with reduced cost. The ultimate evolution of the optical access network involves fibre-to-the-home (FTTH) technologies, which can potentially offer every kind of information and communication related services. Out of all FTTH technologies, the passive optical network (PON) can potentially offer the most cost-effective solution as the optical network is shared between a n...

Optical Networking And Dense Wavelength Division Multiplexing ( DWDM )

1999

This paper deals with the twin concepts of optical networking and dense wavelength division multiplexing. The paper talks about the various optical network architectures and the various components of an all-optical network like Optical Amplifiers, Optical Add/Drop Multiplexors, Optical Splitters etc. Important optical networking concepts like wavelength routing and wavelength conversion are explained in detail. Finally this paper deals with industry related issues like the gap between research and the industry, current and projected market for optical networking & DWDM equipment and future direction of research in this field. See Also: IP Over DWDM (Student Report) | Optical DWDM Networks (Lecture by Dr. Jain) | IP over DWDM (Lecture by Dr.Jain) | References on Optical DWDM Networks and IP over DWDM | Books on WDM and Optical Networking Other Reports on Recent Advances in Networking Back to Raj Jain's Home Page