DWDM system
Hi guys, in this article we will explain the following:
What is a DWDM system?
DWDM System Basics:
DWDM mechanism of action:
Alternative to “DWDM”:
The difference between “DWDM” and “CWDM”:
Common applications of DWDM:
Advantages of DWDM fiber:
1- Increase capacity:
2- Fast and secure data transfers:
3- Reduced costs:
4- Reliability and customization:
DWDM is one of a large number of ways to build a network, offering some of the fastest data rates available today. You should consider proprietary DWDM systems, and if the level of amplitude offered by the dense wavelengths is needed there are not many alternative options.
What is a DWDM system?
Dense Wavelength Division Multiplexing (DWDM): A technology that combines multiplexing and data signals from different sources so that they can share a single optical fiber pair while maintaining complete separation of the data streams. Each signal is carried on a separate optical wavelength and the dense portion of it indicates To the fact that more than 80 separate "wavelengths", each about "0.8 nanometers" wide, can share a single optical fiber.
DWDM is an acronym for Dense wavelength division multiplexing.
DWDM System Basics:
DWDM allows huge amounts of data to traverse a single network link, and because it is carried on distinct wavelengths, the streams (also called channels) do not interfere with each other, thus preserving data integrity, as well as any security-related partition and separate tenants in the same data center . With its ability to handle a lot of data, DWDM is popular with telecom and cable companies and is an integral part of their backbone networks. It is also of interest to anyone running densely populated data centers, particularly hyperscale cloud service providers for IaaS or Co-location providers for their multi-tenant space.
Optical fibers work in the world, and they are deeply embedded in all infrastructure level communications, and optical fibers are constantly becoming more available and affordable for all aspects of networks, so when you have to ensure the integrity of any network, you must make sure that you are using the right tools for the job and method The only way to get this is to have a deep understanding of what is available.
You can also improve this understanding by learning about “DWDM” technology, as it is a vital form of optical fiber communication that is completely irreplaceable in many applications, DWDM is a breed of optical fiber specifically oriented towards operations Extremely data-intensive, these data-intensive needs are primarily fulfilled through two aspects of DWDM design.
For starters, it is optical fiber multiplexing, meaning that the cables are paired in a way that allows data to flow in two directions at the same time, and any node on the network can send and receive information simultaneously, and the most important thing in determining “DWDM” is the nature of the dense wavelengths A single cable can run up to "192" or "96 on legacy designs" simultaneously and distinct communication channels simultaneously.
Since each channel can carry up to 100 gigabits per second, this results in a total bandwidth of 19.2 terabytes per second, and DWDM creates this reality using extremely narrow distances in the wavelength of each channel. Typical designs are based on “0.4 nm” or “0.8 nm” spacing, and since each channel is secured to prevent interference and cross-channel interference, DWDM communications rely on precise laser signals, and this increases the production cost of DWDM systems.
DWDM mechanism of action:
DWDM channels are implemented via a group of infrared lasers (IR), and in a system in which each channel carries “100 gigabits per second” and “192 channels” for each pair of fibers, this translates to a capacity of “19.2 terabytes per second” second” for each pair, and because the channels are physically distinct and do not interfere with each other thanks to the properties of the light, each channel can use different data formats and transmit at different data rates.
For example, “IP” via “DWDM” will allow “100 Mbps” and “10 Gbps” data channels to share optical fibers, in addition to sharing it with the synchronous optical network data channel “SONET/OC-192.”
Note: “IP” is an abbreviation for “Internet Protocol”
SONET/OC is an acronym for Synchronous Optical Network/Optical carrier.
Alternative to “DWDM”:
Coarse Wavelength Division Multiplexing (CWDM) uses laser beams to transmit information over fiber-optic cables. CWDM is much less expensive than DWDM, as well as more durable for low quality fibers, single fiber strands and multimode fibers.
CWDM is an acronym for Coarse Wavelength Division Multiplexing.
The difference between “DWDM” and “CWDM”:
The big difference in optical fiber multiplex is “CWDM”, where “C” stands for coarse wavelength spacing and this limits “CWDM” cables to a maximum of “10 Gbps” and enables designs to use less precise equipment. With lower data capabilities and lower cost, the choice between the two will always be determined by the network functionality.
Common applications of DWDM:
Given the unusual density of data that DWDM can transmit, it is mostly used in applications that require it, and the most common of these applications are communications, and Internet providers usually run DWDM in communication hubs.
Similarly, dense data centers often run on DWDM, and while overall data rates are important, the ability to run separate formats and data rates on each channel greatly helps data centers simplify their networks.
Cloud service providers are the other big user of DWDM, and enterprise cloud providers need the extraordinary bandwidth provided by dense optical fibers to meet the demand.
Advantages of DWDM fiber:
Capacity increase:
The DWDM aspect of fiber networks allows companies to increase their network bandwidth by transmitting multiple signals of different wavelengths over the same fiber. DWDM equipment also allows organizations to take advantage of the designated wavelength of light for their use only by separating the wavelengths.
Because the wavelength belongs to you, you have a dedicated point-to-point circuit that carries network traffic and the technology also allows companies to send multiple forms of multimedia content to be sent over the same fiber.
Fast and secure data transfers:
Because DWDM carries data over separate wavelengths, they do not interfere with each other which promotes fast transfer speeds and security, and just as when multiple entities use the same data center, each additional wavelength can send and receive data at a speed of 2.5 Gbps. or “10 Gbps” or higher, which greatly increases the bandwidth of individual fibers.
Reduced costs:
Because DWDM is able to have the most performance and capacity out of a single optical fiber, the technology reduces network transmission costs.
Reliability and customization:
By splitting optical fibers into multiple channels, organizations can reliably access their dedicated network and have greater control over their setup, and with DWDM network reliability, organizations have virtually unlimited flexibility over network capacity and scalability.
Thank you.
