Key technologies for metro optical network evolution 4. All the networks using optical fiber as transmission medium optical networks when transmitted signal remains in optical form till its arrival at destination alloptical network. For decades, the world bank group has been engaging with client governments around the world to improve digital connectivity and access, supporting policy and regulatory reforms and investments for broadband communications infrastructure. Then various broadband access technologies are discussed and the major features of hybrid fiber coax hfc, passive optical networks pon, broadband over power lines bpl, wireless fidelity wi. The amount of network bandwidth a fiber cable can carry easily exceeds that of a copper cable with similar thickness. Wavelength division multiplexing passive optical networks. Migration from copper to fiber access network using passive optical network for green and dry field maintenance and rehabilitation to improve the satisfaction index 9.
An optical network is also known as an optical fiber network, fiber optic network or photonic. Communications infrastructure upgrade the need for deep fiber. Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference are required. This central section, made of silica or doped silica, is the light transmitting region of the fiber.
The light forms an electromagnetic carrier wave that is modulated to carry information. Components and architecture of gpon ftth access network. Wavelength division multiplexing approach is used to route signals on the man. In analog phone days, these were called digital loop carriers dlcs, and the term new generation dlc was used for a time, but most such devices today deliver dsl.
Access points nodes for accessing and sending data to the ring. Broadband optical access networks and fibertothehome will be an invaluable resource for engineers in research and development, network planners, business managers, consultants as well as analysts and educators for a better understanding of the future of broadband in the field of telecommunications, data communications, and broadband. Fulltext pdfs of conference papers are available to osa publishing subscribers or through one of the purchase options mentioned on our subscription page. Pdf fiber access network architectures such as active optical networks aons and passive optical networks pons have been developed to support the. Sevencore optical fiber in a passive optical access network.
Baocheng li, 1, 2, zhiwei tan, 1, perry ping shum, 1, 2 dora juan juan hu, 3 chenlu wang, 1, 2 yu zheng, 1, 2 and liu shuhui 4, 1 school of eee, nanyang technological university, 50 nanyang avenue, 639798, singapore. A passive optical network pon system is the most efficient method for providing broadband transmissions over an access network. Pon passive optical network based ftth access network is a pointtomultipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve 32128 premises. Passive optical network pon based ftth access network is. An optical fiber is made of 3 concentric layers see figure 3. Request pdf multimode fiber for optical access network applications multimode fiber mmf has core dimension much larger than that of single mode fiber smf, thus, substantially reducing. Optical fibres for the access network are specified in recommendations itut g. Ftth is simply the 100% deployment of optical fiber in the access network. It can also work as a protective device to protect fiber optic connections from damage.
Abstractpassive optical networks pon technology brings an evolution in the industry of telecommunication for the provisioning of high speed internet hsi and triple play bundled services that includes voice, data, and video streaming throughout. Applications of optical fiber access network scientific. Design and implementation of a practical ftth network. We can also assist our customers with communicating to these other counties to extend the reach of the network into nearly all parts of maryland. Jan 23, 2017 an optical network is a type of data communication network built with optical fiber technology.
A pon configuration reduces the amount of fiber and central office equipment required compared with pointtopoint architectures. Fi, worldwide interoperability for microwave access wimax, celluar and satellite networks, and local multipoint distribution service lmds and. Wdm man in this architecture access points are connected in a ring topology. In this method, an optical line terminal olt in the central office co and an optical network unit onu in the subscribers house provide. In addition to telecommunication companies, utilities and transportation agencies realize the benefits of installing a fiber network. The first phase the first phase of lightwave systems operated near 850 nm and used gaas semiconductor lasers with multimode fibres. White paper hexatronic fiber optic solutions for broadband. Highcapacity optical fiber links between cities and major hubs e.
Fiber cables rated at 10 gbps, 40 gbps, and 100 gbps are standard. In fiber optic network, it is sometime necessary to splice large fiber count cables to smaller cables at a location other than at the end of the large cable, called midspan entry. A passive optical network is a form of fiberoptic access network. Fiberoptic communication is a method of transmitting information from one place to another by sending pulses of infrared light through an optical fiber.
Pon networks are the dominant network type in fiber access networks because they minimize hardware cost by sharing some of the most expensive elements of. Oct 15, 2018 we are able to provide access to dark fiber resources throughout the county and can provide connectivity to baltimore city, howard county, carroll county and harford county. Innovative business models for expanding fiber optic networks and closing the access gaps. This technology enables telecommunications service providers to send voice, data, and video at ever increasing rates. Pdf design and implementation of a fiber to the home ftth. Innovative business models for expanding fiberoptic networks and closing the access gaps.
A pon consists of an optical line terminal olt at the service providers central office and a number of optical network units onus near end users. These shorthaul networks of fiberoptical cable are used for. Migration from copper to fiber access network using. Multimode optical fiber transmission with a deep learning. Make your network efficient by using the same optical transport platform for every application, fiber type, and reach. Pon systems specifications are included in the itut g. Access nodes are typically placed on the premises and are connected to neighboring nodes via optical fibers. Pdf design and implementation of a fiber to the home. The penetration of the passive optical network pon in access is very slow as compared to the increa demand. It utilizes optical fiber cables as the primary communication medium for converting data and passing data as light pulses between sender and receiver nodes.
Optical fiber networks have high capacity can be used for providing the high bandwidth services even in wireless, infrared means high bandwidth connectivity. Epon and gpon are popular versions of passive optical networks pons. The ducts will be installed over the entire network extending from the service office to the fiber distribution hubs and beyond to every customer site in the network. An overview of gpon in thean overview of gpon in the access. Broadband optical access networks and fiber tothehome will be an invaluable resource for engineers in research and development, network planners, business managers, consultants as well as analysts and educators for a better understanding of the future of broadband in the field of telecommunications, data communications, and broadband. We also simplify optical networking with a unified management system and a resilient, multilayer control plane. This application note provides guidelines on how to access fibersribbons at midpoint of sterlite optical fiber cables. Fiber all the way to the home or business customer ftth or fttb. Passive optical network pon based ftth access network is a pointtomultipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32128. Multimode optical fiber transmission with a deep learning network.
Access networks providing peripheral links lastmile access to the endusers. Traditionally, optical fibers have been widely used in backbone networks because of their huge available bandwidth and very low loss. Multimode fiber for optical access network applications. The traditional access fiber architecture has been the fiber remote, which is. A passive optical distribution network pon uses singlemode optical fiber in the outside plant, optical splitters and optical distribution frames, duplexed so that both upstream and downstream signals share the same fiber on separate wavelengths. Faster pon standards generally support a higher split ratio of users per pon, but may also use. Sonet synchronous optical network is a us standard for the internal operation of telephone company optical networks. The traditional access fiber architecture has been the fiber remote, which is a highspeed fiber trunk sonet or ethernet that terminates in an electrooptical multiplexer. Allfiber components are ideal for passive optical networks because of many inherent advantages such as low forward and return losses and high power handling capability. Welcome to the 2016 optical fiber communication conference and exhibition. Design and implementation of a fiber to the home ftth. This article introduces the basic concepts of optical access network, technical characteristics, the next type of optical access network applications, business support capabilities, configuration, structure, selection of future development trends of the optical access network. All the networks using optical fiber as transmission medium optical networks when transmitted signal remains in optical form till its arrival at destination all optical network. Optical fiber is a highlytransparent strand of glass that transmits light signals with low attenuation loss of signal power over long distances, providing nearly limitless bandwidth.
Midspan access of loosetube ribbon fiber optic cable. Migration from copper to fiber access network using passive. The economics of fiber networks have only recently allowed for connecting the fiber directly to the home, creating a fiber tothehome ftth network. The role of fiber optic cables in computer networking. Basic of optical distribution frame odf fs community. The range of topics to be addressed includes optical network architecture, control and service, optical networking technologies and demonstration, fttx technolo. Because light can travel for much longer distances over a fiber cable without losing its strength, the need for signal boosters is lessened. Much of the following information comes from municipal broadband. In every phase bl increased initially but began to saturate as the technology matured. The traditional access fiber architecture has been the fiber remote, which is a highspeed fiber trunk sonet or ethernet that terminates in an electro optical multiplexer.
Given the high fiber count in a campus network, hexatronics micronet system is an ideal choice to use when designing and installing campus networks. Our 1830 photonic service switch meets all your optical transport needs. Besides, the simple topology shown in the following illustration, pon can work in other topologies. Many operators state that the key requirements for the next generation optical access networks are a high. Fttx can use p2p links to reach the end users or a pon based p2mp topology. An overview of gpon in thean overview of gpon in the. An optical network is a type of data communication network built with optical fiber technology. In preparation for 5g, deep fiber architectures for cable access evolution in mobile transport architectures will provide additional drivers for optical. The x in fttx stands for different things based on how close the fiber terminates to the end customer. It is closely related to a system called sdh synchronous digital hierarchy adopted by the ccitt now the itut as a recommendation for the internal operation of carrier ptt optical networks worldwide.
Access network a passive optical network pon is a pointtomultipoint, shared optical fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 64128. Whats the difference between epon and gpon optical fiber. These shorthaul networks of fiber optical cable are used for internet access, voice. Passive optical network pon based ftth access network is a pointtomultipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32128 9. The proposed connection will be from the olt to access point fiber access terminal distribution box fat. That said, the cost of replacing legacy cable networks with fiberoptic cables increases. Design and implementation of a fiber to the home ftth access.