Contents iv introduction to dwdm technology ol088401 optical fibers 26 how fiber works 26 multimode and singlemode fiber 27 singlemode fiber designs 28 transmission challenges 29 attenuation 29 dispersion 210 summary 212 light sources and detectors 2 light emittersleds and lasers 2 itu grid 214 light detectors 215 optical amplifiers 216 erbiumdoped fiber amplifier 216. The 3m passive optical lan solutions pols offers a complete endtoend fiber solution. Gpon gigabit passive optical network gepon gigabit ethernet passive optical network lc lucent connector led light emitting diode lr long reach lrm long reach multimode olt optical line terminal onu optical network unit otdr optical time domain reflectometer p2p peer to peer pc physical contact pdtia photo diode with transimpedance amplifier. Couplers, wdms, attenuators, isolators, and circulators are passive optical components. Report on initial specifications of the transmitter and receiver optical.
This paper describes technologies related to passive optical components such as fused fiber couplers, optical filters, splitters and fiber. Gpon training gigabit passive optical networking training. Passive optical network pon is also known as optical lan or gpon. 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. This is the second of a four reference books that will cover this technology. Passive optical component market size, industry trend forecast. Passive optical components, volume ii the communications industry is at the onset of new expansion of wdm technology necessary to meet the new demand for bandwidth. When moving to advanced networks beyond 10g or ultradense requirements to test allparameters can be expected for many components. Although the service reliability of passive optical components has been quite good, methods for predicting reliability have not been developed for them as they have for fiber.
Before discussing the specific details of the pon, it is worthwhile to survey the alternate access technologies in. First principles optical isolators or, more simply, isolators are passive components commonly integrated into high performance laser diode assemblies. The communications industry is at the onset of new expansion of wdm technology necessary to meet the new demand for bandwidth. In the ofdmpon a passive optical splitter of ratio 1. Dutta university of connecticut storrs, connecticut, usa masahiko fujiwara networking research laboratories nec corporation tsukuba, ibaraki, japan academic press an imprint of elsevier science. Individual passive optical tap is required for each node. The function of an isolator in an optical system is analogous to that of a diode in an electronic circuit. Gpon training gigabit passive optical networking training course covers the fundamentals of fttx gpon and xgpon technologies. Overview as networks face increasing bandwidth demand and diminishing fiber. The book is also a resource for graduate students and scholars interested in these rapidly growing fields.
His research interests are in the optical component integration, optical crossconnect. From the equipment room to the work area and everywhere in between, we offer plugandplay connectivity, high reliability and low cost of ownership. Wdm concepts and components passive components a common fabrication method for an n x nsplitter is to fuse together the core of n singlemode fibres over a length of few millimetres. Passive optical components realize the full potential of your network with passive optical components 7. Odn optical distribution network an odn realizes the optical transmission from the olt towards the users and vice versa. Headquartered and factory are located in shenzhen of china. Developments in smart city applications, 5g and other new technologies have highlighted the value of passive optical devices across the fiber networkfrom the. These components have been actively deployed in ftth fiber to the home networks. We promise to offer a perfect and fullrange solution for your passive optical network projects. Atmasynchronous transfer mode, passive optical networking 2.
A laser source of 1550 nm wavelength was used with 100 km, 140 km and 288 km single mode fiber. An overview of gpon in thean overview of gpon in the. Thes e components range from sm fiber, pm fiber and multimode fiber. A new method to determine loss, pdl, gd, and dgd of.
You can choose the excellent passive optical components in our online store or asking for the custom service by contacting us. Active optical components is an excellent resource for engineers and researchers engaged in all aspects of fiber optics communication, such as, optoelectronics, equipmentsystem design, and manufacturing. Since the emergence of the passive optical network pon as a crucial access technology, a considerable amount of research has focused on fundamental design issues such as resource allocation 1. The wavelength division multiplexingpassive optical network wdmpon has been known as the utmost advanced technology with high security, guaranteed qos, transparent protocol and so on. Gpon can transport ethernet, and tdm pstn, isdn, e1 and e3 traffic and consists of optical line termination olt and optical network unit onu or. Speed and technology agnostic, they work with service providers existing equipment, enabling different services and technologies to be deployed on the same fiber. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Lamea passive optical component market market size. Pon technology has three applicationspecific technologies. In addition to these parts, we also offer active components such as optical switches. Evolution of passive optical component technologies for.
Passive optical lan brings high performance gigabit broadband to the desktop at a fraction of the cost of typical copperbased ethernet lan configurations. The benefits of itconnects beautifully designed pon system include. There is a growing need for methods of predicting failure rates as these components move into new areas of existing networks and new applications where they will be. Common tests for passive optical components tests of passive optical components can be divided into two broad categories loss and dispersion. These products enable highspeed voice, video and data communications for networking, storage, wireless, and cable tv applications. An optical isolator is a twoport passive component that allows light in a given wavelength range to pass through with low attenuation in one. Passive optical bypass modules formerica optoelectronics. Polarization dependent loss measurement of passive optical. Say goodbye to cluttered electric cables optical fiber is the harbinger of the future. Lower loss in creases the potential distance of a transmission system or distance between amplifiers. Passive optical components solution fiberstore can offer you a low cost and high quality option for all the above products. Introduction to some common passive components in fiber.
System and component development is focused on operation within two low loss. Insertion loss il, the loss in power of a signal through a device, is the most common test. This is the second of a four reference books that will cover this technology comprehensively with all of the major topics covered by a separate volumes i. Study of ofdm technique on rof passive optical network. Olt optical line termination an olt is the service provider endpoint of a pon and is placed in a co or head end ont optical network termination. Allparameter test combines the stateoftheart technique for loss and pdl with a new high potential interferometric gd and dgd measurement. Ofdm as a modulation technique for radio over fiber rof in passive optical network pon. Passive fiber splitters are used to split the fiber to allow users access to the total available bandwidth for the application. This technology uses optical fiber instead of copper to transmit data.
Passive optical components and their applications to ftth. A passive optical network pon is a fiberoptic telecommunications technology for delivering. The passive optical network pon is just one of several access technologies used by service providers, but it enjoys a dominant position in the access market. Fast, efficient, and immune to electromagnetic interference, these hitech light pipes have exhibited outstanding versatility in applied sciences and engineering. Disruptive optical technologies for nextgeneration wdm communication. Fiber optic passive components manufacturer opticking. In the context of passive component testing during component manufacture, two techniques for determining the pdl of a device under test dut are. Optical transceivers are key components to support the 10gepon system, determining the optical transmission performance of the system.
Taking this into account, the authors have developed small and pluggable optical transceivers for 10gepon systems and successfully demonstrated the maximum loss budget of 29 db at low power consumption. Cost effective, best quality and best service are always our goal. Formericaoeshigh density passive optical bypass module is a compact box that contains 1 or 2 optical bypass switch which can be controlled by the controller of inline equipment to perform the failtowire optical bypass function. A splitter connects transmission equipment at a central office to a plurality of users, leading to economical pds. Passive optical components and their applications to ftth networks. Development of small optical transceiver for 10gepon. The system and component vendor point of view is continuously present throughout. This paper describes technologies related to passive optical components such as fused fiber couplers, optical filters, splitters and fiber gratings. The optical power inserted through one of the n fibre entrance ports gets divided uniformly into the cores of the n output fibres through evanescent power coupling in the fused region. This course describes and compares the benefits, components and operation of the three main types of passive optical network bpon, gpon and epon as used in various configurations including fibre to the home ftth and fibre to the cabinet fttc. Pobmc1cx4p0a and pobmc1cx8p0a passive optical bypass modules. Denselight offers a comprehensive line of optical passive components.
Passive optical components the communications industry is at the onset of new expansion of wdm technology necessary to meet the new demand for bandwidth. Pon technologies are constantly advancing toward increased capacity, embodied primarily by highspeed timedivision multiplex. Optical line terminals olt, optical network units onus, passive splitters, and optical network terminals onts. The three fundamental technologies for making passive components are based on optical fibres, integrated optical. By using passive optical splitters, the system distributes converged services directly from the main switch to the terminals without electricity. Dk photonics technology limited is one of the leading companies in designing and manufacturing of high quality optical passive components mainly for telecommunication, fiber sensor and fiber laser applications. Passive optical products about finisar finisar corporation is a global technology leader in optical communications components and subsystems. Proceedings volume 5246 active and passive optical components for wdm communications iii. Optical networks definition optical networks are highcapacity telecommunications networks based on optical technologies and components that provide routing, grooming, and restoration at the wavelength level as well as wavelengthbased services. Passive optical components volume ii edited by achyut k.
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