Advantages of DWDM Technology - Technopediasite

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Monday, March 2, 2020

Advantages of DWDM Technology

Advantages of DWDM Technology : The capacity of optical fiber is very large. However, traditional optical fiber communication systems, with an optical signal in a single fiber, only exploit a small fraction of the optical fiber's abundant bandwidth. To effectively utilize the vast bandwidth resources of optical fiber and enhance its transmission capacity, a new generation of optical fiber communication technology based on dense-WDM (DWDM) has emerged.

Why is there a need for DWDM technology in telecommunication network and what are its benefits, we will discuss the same thing in this article. Understand mainly that DWDM is a technology in which input is very less and output is very high. The DWDM system adopts wavelength conversion technology to convert optical signals of multiplex terminals to specific wavelengths. Optical signals from different terminal devices are converted to different wavelengths.Now I will explain about the main features of DWDM which are given below.
Advantages of DWDM Technology
DWDM Technology

Main features of DWDM Technology

According to my technical view, first one should write about the capacity of DWDM. The greatest feature of DWDM technology is that it has Ultra-large capacity.So first of all I will mention Ultra Large Capacity.

1. Ultra Large Capacity of DWDM Technology

The permeability bandwidth of currently commonly used conventional fibers is very wide, but the utilization ratio is still low.DWDM is still not used in optical networks so widely. But we all know that using DWDM technology increases the transmission capacity of a single optical fiber by several times, tens or hundreds of times compared to the transmission capacity of single wavelength systems.

Many companies like NEC, Alcatel, Nortel, have manufactured DWDM systems. The capacity of mainly DWDM are 132 x 20Gbit/s with a transmission distance of 120km. Those DWDM system, with a total bandwidth of 35nm (1529nm~1564nm) and a channel spacing of 33GHz, can transmit 40 million telephone calls. We can say that the work that 100 optical fibers cannot do together can be done only with the help of two optical fiber due to DWDM technology.

2. Data rate Transparency

Technology of DWDM systems perform multiplexing and de-multiplexing in optical wavelength differences and are independent of signal rates and modulation modes, i.e transparent to data. Therefore, they can transmit signals with completely different transmission characteristics and implement the combination and isolation of various electrical signals, including digital signals and analog signals and PDH signals and SDH signals.

3. Protection during system upgrade

Honestly I am saying that, the more you write about Advantage of DWDM Technology the less it is written. How many problems are faced if network expansion or any type development has to do in network but DWDM an ideal approach to implement capacity expansion without installing the new optical fiber cables. Only some optical transmitters and receivers are required which is usually required when working in optical networks. This is a very easy way to introduce broad-band services. In addition, if you want any new services or new capacity only you have to introduced simply by adding an additional wavelength.

4. More reliable

It is very important that the devices are reliable in the telecom network. DWDM system is a telecom device that is highly reliable, and having high flexibility, economy. If we talk about TDM, then this DWDM is very simple and very reliable in comparison to it, the new communications network architecture based on DWDM technology is much simpler and the network layers are clearer.

Diversion/rerouting of various services can be simply implemented by adjusting the respective wavelength of the optical signal. Due to the simple network architecture, clear layers and convenient service grooming, networking flexibility, economy and reliability are evident.

5. Compatible with all optical switching

It is worth noting that, in realizing all optical networks in the future, processing such as add / drop and connection of all telecommunications services is implemented by changing and adjusting the optical signal wavelength.There can be no obstacle in future network expansion or network upgrade.

So DWDM technology is the best telecom technology for the future and present. Therefore DWDM technology is one of the most important technologies to implement all optical networks. Now I don't have to write that DWDM technology can be compatible with future all optical networks. We need to pay special attention to DWDM technology to create a highly reliable,transparent and highly survival and easy network.

Hope you will be satisfied with the information given about " Advantage of DWDM technology by Technopediasite. Tell me how you liked this article " Advantages of DWDM Technology ".If it is profitable for telecom friends, then share it so that others also benefit. 

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