Ppt wavelength division multiplexing wdm in optical networks powerpoint presentation free to download id. Wavelength division multiplexing is a kind of frequency division multiplexing a technique where optical signals with different wavelengths are combined, transmitted together, and separated again. Dense wavelength division multiplexing linkedin slideshare. Wdm concepts and components a powerful aspect of an optical communication link is that many different wavelengths can be sent along the fibre simultaneously. Therefore, the combination of dwdmcwdm technologies can offer a great potential for solving. Ppt dense wavelength division multiplexing dwdm powerpoint presentation free to download id. This technique enables bidirectional communications over one strand of fiber, as well as multiplication of capacity. Wavelength division multiplexing approach is used to route signals on the man. Ppt wavelength division multiplexing wdm in optical. Wavelength division multiplexing seminar report, ppt.
Download your full reports for dense wavelength division multiplexingdwdm. Coarse wdm refers to multiplexing of less number of signals on a single optical fiber. These multi wavelength channels are usually spaced about 50 to 100 ghz apart. Ee4512 analog and digital communications chapter 7 tdm is used for baseband and fdm for bandpass data. A rapid tunable the network will utilize cienas cn 4200 rs flexselect advanced services platform, a wavelengthdivision multiplexing transport platform that the company says is designed for telco and cable service providers, large enterprises, research and education institutions, and government organizations to deploy in locations that require massive. Wavelength sensitive filters, the ir analog of visiblelight color filters, are used at the receiving end. Circulators generally get used when two networks or locations are being joined and they both use the same wavelength. Ciena corporation, 920 e lkridge landing rd, linthicum, md 21090 phone. This technique enables bidirectional communications over one strand of fiber, as well as multiplication of capacity the term wdm is commonly applied to an optical. The two major types of wavelength division multiplexer are coarse wavelength division multiplexer cwdm and dense wavelength division multiplexer dwdm.
The network will utilize cienas cn 4200 rs flexselect advanced services platform, a wavelength division multiplexing transport platform that the company says is designed for telco and cable service providers, large enterprises, research and education institutions, and government organizations to deploy in locations that require massive. Designed for short to mediumhaul networks regional and metropolitan area. Multiplexing allows several transmission sources to share a larger transmission capacity. Wavelength division multiplexing seminar report, ppt, pdf for. In fiber optic mode, multiple optical carrier signals are multiplexed into an optical fiber by using different wavelengths. This predesigned dense wavelength division multiplexing ppt consists of hd and vectorbased graphics. Wavelength division multiplexing wdm is a technique modulating various data streams, i. In addition, there are two critical factors inside a wavelength division multiplexing wdm system which is the optical wavelength multiplexer mux, and also the demultiplexer demux. The operation of each component is discussed individually and the whole structure of a fundamental dwdm system is shown at the end of this blog. View wavelength division multiplexing research papers on academia. The optical fiber data rate is higher than the data rate of metallic transmission cable, but using a fiberoptic cable for a single line wastes the available bandwidth. Wavelength division multiplexing wdm is an analog technique, in which many data streams of different wavelengths are transmitted in the light spectrum.
Wavelength division multiplexing wdm is a technology or technique modulating numerous data streams, i. Acoe312 multiplexing 2 3 key points to make efficient use of highspeed communication lines, some form of multiplexing is used. Explore wavelength division multiplexing with free download of seminar report and ppt in pdf and doc format. Feb 23, 2017 a video tutorial about wavelength division multiplexing created using powtoon. Wdm wavelengthdivision multiplexing is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths i. Wavelength division multiplexing ppt download slideplayer.
View and download powerpoint presentations on wavelength division multiplexing ppt. Each communication channel is allocated to a different frequency and multiplexed onto a single fiber. Ppt dwdm presentation powerpoint presentation, free download. Wavelength division multiplexing linkedin slideshare. Optical fdm is usually called wavelength division multiplexing wdm and utilizes separate wavelengths. Wavelength division multiplexing research papers academia.
Dense wavelength division multiplexing dwdm is wavelength division multiplexing wdm with typical channel spacing of 100 ghz for 40 channels and 50 ghz for 80 channels. Zayo for 100g wavelength solutions, leveraging a new route between richmond and ashburn, virginia, which zayo recently enabled for dense wavelength division. Wavelengthdivision multiplexing article about wavelength. Wdm could be divided into cwdm coarse wavelength division multiplexing and dwdm dense wavelength division multiplexing.
Zayo for 100g wavelength solutions, leveraging a new route between richmond and ashburn, virginia, which zayo recently enabled for dense wavelength division multiplexing dwdm capabilities, the company said. Each channel contains a tdm time division multiplex signal. Mar 26, 2010 what is dwdm dense wavelength division multiplexing dwdm is a technology that uses more than eight multiplexed signals to transmit many wavelengths of light simultaneously over a single optical fiber. Multiplexing techniques frequencydivision multiplexing fdm each channel occupies a fraction of the bandwidth of the link a channel is defined by its center frequency, and its bandwidth. Wdm concept and components wavelength division multiplexing. Each optical channel can carry any transmission format different asynchronous bit rates, analog or digital scalability buy and install equipment for additional demand as needed wavelength routing and. Find powerpoint presentations and slides using the power of, find free presentations research about wavelength division multiplexing ppt. Cwdm coarse wavelength division multiplexing from four to 8 wavelengths per fiber, sometimes more. Wavelength division multiplexing wdm systems get around the speed limitation of electronics by using multiple wavelengths of light simultaneously. Ppt dense wavelength division multiplexing dwdm powerpoint.
Wavelength division multiplexing wdm is a method of combining multiple signals on laser beams at various infared ir wavelengths for transmission along fiber optic media. The best part is, this is available in two color themes. Like circulators, cwdm is a sm fiber based technology. In the case of the network using oxcs with the conversion, a lightpath can use different colors on different links. Overview this tutorial addresses the importance of. Ppt wavelength division multiplexing wdm in optical networks. What is dwdm dense wavelength division multiplexing dwdm is a technology that uses more than eight multiplexed signals to transmit many wavelengths of light simultaneously over a single optical fiber. May, 20 many fiber optic networks use wavelength division multiplexing to share a single fiber for multiple channels by using different wavelengths or colors of light for each channel. Wavelengthdivision multiplexing synchronous timedivision multiplexing 6. Overview this tutorial addresses the importance of scalable dwdm systems in enabling. Developments in wavelength division multiple access networking. This is an analog multiplexing technique and is done conceptually in. Dense wavelength division multiplexing theory thank you what we will cover wdm overview optical fiber transmission characteristics key technologies of dwdm technical specifications background wdm tdm sdm pdh sdh dwdm 155m 622m 2.
The technology of combining a number of wavelengths onto the same fibre is known as wavelengthdivision multiplexingor wdm. Mod01 lec26 wavelength division multiplexed systems duration. In fiberoptic communications, wavelength division multiplexing wdm is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths i. Dense wavelength division multiplexing dwdm is reserved for very close frequency spacing.
If the wavelength increases, the frequency of the signal decreases. So each fiber have a set of parallel optical channels each using slightly different light wavelengths. In fiberoptic communications, wavelengthdivision multiplexing wdm is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths i. Wavelength division multiplexing light has different wavelength colors. Dense wdm dwdm uses 200, 100, 50, or 25 ghz spacing. Wavelength division multiplexing seminar report, ppt, pdf.
This mode occupies a very narrow spectrum making wavelength division multiplexing possible multimode laser spectrum. Dense wavelength division multiplexing article about. This dense wavelength division multiplexing dwdm ppt template is available to download in two different color themes. Optical fiber wavelength division multiplexing article pdf available in ieee aerospace and electronic systems magazine 188. Optical networking and dense wavelength division multiplexing. What is dense wavelength division multiplexing dwdm.
Wavelength division multiplexing systems can combine signals with multiplexing and split them apart with a demultiplexer. Bandwidth utilization is the wise use of available bandwidth to achieve. Dense wavelength division multiplexing article about dense. Each optical channel can carry any transmission format different asynchronous bit rates, analog or digital scalability buy and install equipment for additional demand as needed wavelength. Frequency division multiplexing fdm time division multiplexing tdm.
Dwdm dense wavelength division multiplexing a typical dwdm system supports eight or more wavelengths. A wdm can also allow the system designer to remove, or add, a wavelength at a point and let the other wavelengths pass through. Dec 15, 2016 dense wavelength division multiplexing dwdm is wavelength division multiplexing wdm with typical channel spacing of 100 ghz for 40 channels and 50 ghz for 80 channels. Rp photonics encyclopedia wavelength division multiplexing. Wavelength division multiplexing wdm in optical networks modeled as a graph coloring problem.
Is the set of technique that allow thesimultaneous transmission of multiple signals across a single data link. Dense wavelength division multiplexing dwdm powerpoint. A main part of the contribution is dedicated to a presentation of the hpon configurator. Developments in wavelength division multiple access. An analog multiplexing technique to combine optical signal.
Possible solutions install more optical fiber increase tdm speed shorter pulses wavelength division multiplexing wdm optical code division multiplexingocdma 4 overview digital transceiver digital transceiver digital transceiver digital transceiver. It increases bandwidth by allowing different data streams to be sent simultaneously over a. You can easily resize the graphics without worrying about its visual quality. Also explore the seminar topics paper on wavelength division multiplexing with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. Wdm wavelength division multiplexing linktionary term. Wavelength division multiplexing, wdm, has long been the technology of choice for transporting large amounts of data between sites.
Bandwidth utilization is the wise use of available bandwidth to achieve specific goalsspecific goals. And with the proper fiber cable, the two can be done simultaneously. Many fiber optic networks use wavelength division multiplexing to share a single fiber for multiple channels by using different wavelengths or colors of light for each channel. Wavelength division multiplexing and directional multiplexing.
The basics of wavelength division multiplexing, wdm smartoptics. The first of these is the need for fast wavelength tuning. Wavelengthdivision multiplexing wdm is a method of combining multiple signals on laser beams at various infared ir wavelengths for transmission along fiber optic media. Capacity upgrade of existing fiber networks without adding fibers transparency. Wavelength division multiplexing wdm one of the most promising concepts for high capacity communication systems is wavelength division multiplexing wdm. It is mostly used for optical fiber communications to transmit data in several or even many channels with slightly different wavelengths.
We are able to begin to see figure 2 below, an optical prism represents a handy method to understand a muxdemux function. Jan 30, 20 in fiberoptic communications wavelength division multiplexing wdm is a technology which multiplexes multiple optical carrier signals on a single optical fiber by using different colours of laser light to carry different signals. Cwdm course wavelength division multiplexingfig 4 if an application requires more than two bidirectional streams of data through one fiber, cwdm is the perfect solution. Ppt orthogonal frequencydivision multiplexing powerpoint. Wavelength division multiplexing wdm is similar to frequency division multiplexing fdm but referencing the wavelength of light to the. Multiplexing timedivision multiplexing interleaves signals at slower rates frequencydivision multiplexing combines signals at different frequencies electronically to make composite signal wavelengthdivision multiplexing sends signals at different wavelengths like frequency multiplexing of radio spectrum 6. Wdm wavelengthdivision multiplexing wdm is a technology which multiplexes a number of optical carriers signals onto a single optical fiber by using different. Wavelengthsensitive filters, the ir analog of visiblelight color filters, are used at the receiving end. Dense wavelength division multiplexingdwdm full seminar. The basics of wavelength division multiplexing, wdm. Wdm wavelength division multiplexing its the same as fdm.
Orthogonal frequencydivision multiplexing ofdm orthogonal frequencydivision multiplexing it is essentially identical to coded ofdm cofdm is a. Thr ough the application of its adv anced technology, ciena is setting a ne w standar d for bandwidth. This blog covers an introduction to dwdm technology and dwdm system components. It increases bandwidth by allowing different data streams to be sent simultaneously over a single optical fiber network. Efficiency can be achieved byefficiency can be achieved by multiplexing. Foa lecture 31 wavelength division multiplexing wdm. Pdf we present the basic principles of wdm and then introduce some characteristics of various wdm. In fiberoptic communications wavelength division multiplexing wdm is a technology which multiplexes multiple optical carrier signals on a single optical fiber by using different colours of laser light to carry different signals. Dense wavelength division multiplexing dwdm definition dense wavelength division multiplexing dwdm is a fiberoptic transmission technique that employs light wavelengths to transmit data parallelbybit or serialbycharacter. Pdf the utilization of the dwdmcwdm combination in the metro. Distance of several thousand kilometres with amplification and.
In these types of networks, additional applications drive the demand for. It involves the process of multiplexing many different wavelength signals onto a single fiber. Intensive needs for great bandwidth availability and data transmission capacity have boosted the use of wdm in telecommunication. Optical fdm is usually called wavelength division multiplexing. Multiplexing references frequencydivision multiplexing. The adobe flash plugin is needed to view this content. A free powerpoint ppt presentation displayed as a flash slide show on id. Each channel can be used to transmit data at the few gbps afforded by todays electronic speeds, realizing net. Wdm enables bidirectional communication as well as multiplication of signal capacity. Each laser is modulated by an independent set of signals.
In that case the circulator is typically used with a wdm to route just the conflicting channel. Wavelength division multiplexers wdms are used to combine light of different wavelengths into a single fiber. Wavelength division multiplexing wavelength division multiplexing wdm is designed to use the highdatarate capability of fiberoptic cable. It delivers multiplexing of up to 16 channels on a single optical fiber. The collimated beams are then combined using a dichroic filter, with typically the longer wavelength transmitted from port t, the shorter wavelength reflected from port r. Afl company confidential wdm stands for wavelength division multiplexing wavelength division multiplexing is a method of combiningseparating multiple wavelengths of light intoout of a single strand of fiber each wavelength of light carries a different signal this can be accomplished using a variety of different. Cwdm course wavelength division multiplexing fig 4 if an application requires more than two bidirectional streams of data through one fiber, cwdm is the perfect solution.
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