Depending on where the pon terminates, the system can be described as fibertothecurb fttc, fibertothebuilding fttb, or. Barry kantner as the telecom markets begin to recover, many network operators are focusing on broadband access technologies. As shown olt optical line termination unit is used to provide ethernet interface to optical core network and. Its arrangement is a point to multipoint pmp network. Increasing development in the network technologies and the growing need for a faster network are expected to fuel the market growth in 4g carriage services. Passive optical network simply means there are no active devices used in the network.
Based on a reference model that covers aon and pon as well as the interfacing equipment, the different sites and locations in an access network. Passive optical networks pon leverages single mode fi ber for a superior network solution beyond any copper cabling. Optical fiber communication has brought us a new in ternet society. For those that are evaluating optical access technologies, the selection will likely come down to pon passive optical networks or active ethernet.
A feeder fiber from the central office co runs to a remote node rn, which houses a passive optical power splitterkombiner. Optical network segments are categorized with respect to the size of the area. Passive optical networks pons are telecommunication networks that provide services to users by no active elements. Optical fiber, passive optical network, fttx, point to point, point to multipoint, wdm, simulation. Comparing passive optical networks and passive optical lans. A pon network eliminates the need for switches and a wiring closet, which means fewer points of failure. Mar 26, 2012 passive optical networks yaakov j stein may 2007 and zvika eitan slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. From the equipment room to the work area and everywhere in between, we offer plugandplay connectivity, high reliability and low cost of ownership. Fiber optics uses light signal to transmit data to its destination. Because of this setup, passive optical lan can decrease the amount of cable and equipment required to deploy a network. Telesail provide a full range of ethernet passive optical epon product includes optical line termination olt system deployed at the central office as well as several models of optical network units onu deployed at the customers premises. The global passive optical network pon market size was valued at usd 5.
Both of these types of optical network make up the fiber backbone of the internet. Depending on where the pon terminates, the system can be described as fibertothecurb fttc, fibertothebuilding fttb, or fibertothehome ftth. Passive optical networks pons and pointtopoint ethernet are architectures that deliver tripleplay services over ftth networks directly from an operators central office. An indepth overview of pon technologies and the potential applications that they enable. Passive optical networks yaakov j stein may 2007 and zvika eitan. Ftth is a form of fiberoptic communication delivery that reaches one living or working space. If you continue browsing the site, you agree to the use of cookies on this website. This is where the optical access network technology comes to play. In order for data to successfully transmit to its destination, there are two main concept for this to happen which is active optical network aon and passive optical network pon. As shown in the following image, it comprises of optical line terminal olt, optical network unit and passive optical splitter.
Optical transmission systems and equipment for wdm networking ii. A pon consists of an optical line terminal olt which is located at the service providers central. Passive optical networks are used to simultaneously transmit signals in both the upstream and downstream directions to and from the user endpoints. A passive optical network pon is illustrated schematically in the figure below. The others acronym gpon, xgpon corresponds to the standard transmission that travel through this physical network. In japan, ftth fiber to the home net works, in which optical fibers are installed directly to users homes, have. Eponethernet passive optical networkoptical communication. From there, around 32 fibers branch out to the subscribers. Its architecture implements a pointtomultipoint topology, in which a single optical fiber serves multiple endpoints by using unpowered passive fiber optic splitters to divide the fiber bandwidth between multiple access points. P a s sive optic al n et works optical access networks passive optical network pon simple, under standardization technology. Both upstream and downstream traffic on one fiber 1490nm down, 10nm up. With alloptical virtual private network vpn function, pon can support ef. The fiber backbone is the infrastructure of data routes that allow people and businesses access to the internet.
Pdf active and passive optical networks are compared. A passive optical lan consists of an optical line terminal olt in the main equipment room and optical network terminals onts located near endusers. Passive optical networks current trends and future ijedr. Oct 10, 2016 passive optical network simply means there are no active devices used in the network. Comparison between active and passive optical network. Pdf comparison of active and passive optical access networks.
Jun 01, 2016 since it requires power, an active optical network inherently is less reliable than a passive optical network. Figure1 depicts typical set up used for deployment of pon passive optical network. This page aon vs pon optical networks and mention difference between aon and pon optical network types. Olt optical line termination an olt is the service provider endpoint of a pon and is placed in a. Because it requires power, an active optical network inherently is less reliable than a passive optical network. Whats the difference between epon and gpon optical fiber networks. A passive optical network pon is a telecommunications network that uses pointtomultipoint logical connections in which passive optical components such as splitters are used to enable a single optical fiber to serve multiple end points. Today, more and more subscribers are using optical fibers rather than copper lines for broadband internet access. Hence no electricity is needed for operation in the network. Epons build on the international telecommunications union itu standard g. A pon system consists of optical line termination olt at the. Also passive optical splitters which connects olt and onu. They require at least one switch aggregator for every 48 subscribers. In japan, ftth fiber to the home net works, in which optical fibers are installed directly to users homes, have been so popular that the number of contrac.
This page aon vs pon optical networks and mention difference between aon and pon optical network types ponpassive optical network. What is the difference between active and passive fibre optic. What is the difference between active and passive fibre. Aon uses power switching like switch aggregator to manage the signal distribution. Dp16qam twice the bandwidth efficiency compared to 100g. Whats the difference between epon and gpon optical fiber. Broadband passive optical networking bpon bpon is a combination of passive optical networking pon and wavelength division multiplexing wdm. All onts receive the same broadcast data, selecting the appropriate portion corresponding to the. As shown olt optical line termination unit is used to provide. Aon active optical network and pon passive optical network. May 03, 2017 the biggest difference between active passive fibre optic sensors is that passive only receives light data from the test environment, but active fibre contains a addon laser active dopant such as signal amplifier.
Ftth is the most advanced form of fiberoptic communication which you can avail of in your living room or working area. The fiber extends from the central office to the subscribers living or working space. In telecommunication,this is known as point to multiple points or known as abbreviation p2mp. For companies with a copper cablebased architecture approaching the trafficcarrying limits for. Using single mode fiber, the olt connects to passive optical splitters, which replace the switch in the closet and require no power. Comparing active and passive optical networks aon vs. Active optical networks, however, also have their weaknesses. The optical line terminal olt is the heart of the pon network. Since it requires power, an active optical network inherently is less reliable than a passive optical network. That is to say a passive optical network shares fiber optic strands for portions of the network. Active optical network, also called pointtopoint network, usually uses electrically powered switching equipment such as a router or switch aggregator, to manage signal distribution and direct signals to specific customers. This switch opens and closes in various ways to direct incoming and outgoing signals to the proper place. Passive optical network an overview sciencedirect topics. Ethernet passive optical networks definition ethernet passive optical networks epon are an emerging access network technology that provides a lowcost method of deploying optical access lines between a carriers central office co and a customer site.
Olt assigned time slots upstream optical line terminal olt in central office. Pon is a promising candidate in future access areas to provide broadband services with low cost. The optical fiber and splitters are the truly passive building blocks of the pon, with no electrical powering required. A single fiber is used to support multiple customers. Passive optical networking pon pon differs significantly from earlier direct fiber technologies and copperline infrastructures. All optical fibers have a physical limitation known as stimulated brillouin scattering sbs sbs occurs when a high power optical signal over relatively long length 8km fiber generates variations in the fibers optical properties and scatters optical signals in the reverse direction. The passive optical network techniques are largely anticipated to be the most economical solutions. Sep, 2016 active optical network, also called pointtopoint network, usually uses electrically powered switching equipment such as a router or switch aggregator, to manage signal distribution and direct signals to specific customers. Alloptical virtual private network in passive optical. A passive optical network, on the other hand, does not include electrically powered switching equipment. Stated simply, active access networks contain an active electronic element, a. Pon stands for passive optical network referring to the optical network composed by nonactive components in all stages between the origin local exchange and the external sides subscriber or clients. Ftth fiber to the home access networks are widely deployed in homes across many countries. Comparison between active and passive optical network fiber.
A passive optical network, on the other hand, does not include electrically. Odn optical distribution network an odn realizes the optical transmission from the olt towards the users and vice versa. A passive optical network pon is a cabling system that uses optical fibers and optical splitters to deliver services to multiple access points. Passive optical network market is is growing at cagr of 3. What does this mean for the international fibertothehome broadband connection. The key for comparison is examining the total installed cost. Introduction to pon passive optical network transceivers posted on september 10, 2015 by admin as the leading technology being used in fttx ftth deployments, ethernet passive optical networks gepon or epon are now widely used in deployment.
Sep 01, 2015 passive optical network, just as its name shows, it only uses fiber and passive components like optical splitters rather than active components like amplifiers, repeaters, or shaping circuits. P a s sive optic al n et works optical access networks passive optical network pon. Written by the leading researchers and industry experts in the field, passive optical networks provides coherent coverage of networking technologies, fiber optic transmission technologies, as well as the electronics involved in pon system development. Simple simpler than copper, fibers ability to converge multiple services into one medium makes optical lans dramatically simpler to house and maintain. Pon is passive optical network featured with onetomultiplepoint architecture. A passive optical network pon is a system that brings optical fiber cabling and signals all or most of the way to the end user. Passive optical components and their applications to ftth. The first passive optical network pon activity was initiated by the fsan group in the. The opposite of this is the active optical network that will use an amplifier which requires electri.
What is the difference between a passive optical network and an active optical network. If these fibers extend all the way to the homes h, as. The biggest difference between activepassive fibre optic sensors is that passive only receives light data from the test environment, but active fibre contains a addon laseractive dopant such as signal amplifier. Passive optical network market size pon industry report. Passive optical networks pons the optical line terminal olt at the service providers central office co broadcasts data to several optical network terminals onts at the customer premises through the passive fiber network.
Aon vs pon difference between aon and pon optical networks. Passive optical splitter passively splits the signal from the olt over one. Star passive optical networks or pointtopoint active ethernet. Only passive elements are used in the network to transmit the information and. There are two common systems available in ftth networks.
Passive optical network, just as its name shows, it only uses fiber and passive components like optical splitters rather than active components like amplifiers, repeaters, or shaping circuits. Aside from experiencing better performance, youll save energy, real estate and money. These are active optical networks and passive optical networks. An overview of gpon in thean overview of gpon in the. The 3m passive optical lan solutions pols offers a complete endtoend fiber solution. A passive optical network pon is a fiberoptic telecommunications technology for delivering broadband network access to endcustomers.
Legacy technologies pon delivers several additional advantages over legacy copper lan technologies. Get active today, there are two major architecture types. Want to replace mountains of copper cablingand the associated energy, space and maintenance costswith a simple network of fiber. The passive optical network pon is just one of several. Both passive dwdm and active dwdm have their own pros and cons. During the ranging procedure, each active onu receives a ponid from the. Passive optical network pon and active optical network aon is a communication type used to transmit data from one point to many connection.
1013 646 1460 525 89 274 353 265 908 1568 15 1005 726 202 1094 1102 1104 381 569 253 984 1444 1089 823 802 688 1404 991 408