Optopus is designed to meet the high requirements and reliability necessary for todays networks. Ha5800a fttp edfa, erbium doped fiber amplifier, optical. Optical amplifiers provided by fibermart are designed for all network segments access, metro, regional and long haul and applications telecom, cable and enterprise. Edfa stands for erbium doped fiber amplifier and it is one type of many different optical amplifiers.
In the pulse method, since the metastable erbium ions in the edfa require a relatively long time to recover the ground state, if the onoff switching cycle of the optical input to the edfa is sufficiently shorter than the recovery time, the ase can be measured directly by measuring the output of the edfa while the optical signal is off. The em316ea family of cband edfa optical amplifiers is part of the fiber driver optical multiservice platform solution. The amplifier is provided in a micro 45x70x12 mm package, and exhibits low power consumption allowing it to be easily integrated onto space and power constrained transponder line cards. Mar 03, 2011 edfa stands for erbium doped fiber amplifier and it is one type of many different optical amplifiers. Erbiumdoped fiber amplifiers are the by far most important fiber amplifiers in the context of longrange optical fiber communications. Advanced optical components erbiumdoped fiber amplifier. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Cisco ncs 2000 series line card configuration guide.
For a general introduction to optical amplifiers, please see finisars white paper introducti on to optical amplifiers. Unlike the edfa, which is energized with a laser pump, the soa is energized with electrical current. The development of edfa provide tremendous growth in communication. At least the loss limitation can be partially canceled out by the introduction of optical. An optical fiber is doped with the rare earth element erbium so that the glass fiber can absorb light at one frequency and emit light at another. Optical amplifier edfa erbiumdoped fiber amplifier.
The prisma ii optical network allows for best in class architectures with increased reliability, scalability, and costeffectiveness. In order to analyze the noise behavior of a complete transmission line, as shown in fig. Page 3 of 5 specifications at5000 edfa erbiumdoped fiber amplifier 19 1ru item description operating wavelength 1540 nm to 1563 nm. Optical amplifiers are important in optical communication and laser physics. Thorlabs corepumped erbiumdoped fiber amplifiers edfas offer 20 dbm 100 mw output power with a low noise figure of edfa 17. Performance analysis of optical amplifiers edfa and soa. To transmit a signals over long distances 100km, to compensate attenuation losses. Wide spectral band amplification with relative flat. The gain for an erbiumdoped fiber amplifier is shown in figure 7. Dwdm edfa typical optical transport network solution. Difference between using optical amplifier and edfa optiwave. Edfa education kit manual page 2 of 26 generated by stimulated emission.
Soa and the fibertype amplifier erbiumdoped edfa or praseodymiumdoped. White paper introduction to edfa technology june 2009 1 introduction shortly after their commercialization in the early 1990s, erbium doped fiber amplifiers edfas became a key enabling technology for optical communication networks, and have since comprised the vast majority of all optical amplifiers deployed in the field. Edfa amplifier archives tutorials of fiber optic products. The primary difference is that they do not have a resonator. Erbium doped fiber amplifier is the major type of the fiber amplifier used to boost the signal in the wdm fiber optic system, as we know it is wdm that increase the capacity of the fiber. The development of erbiumdoped fiber amplifiers edfa in the latter half of the 1990s supported amplification of signals using wavelengthdivision multiplexing wdm and permitted the spread of longdistance, large capacity communications, such as optical submarine cables and optical subscriber systems. The next time you need, linear video or multiscreen, mpeg, docsis or xphy tm, ip or rf resources to support the operation of multivendor, multitechnology products deployed in your hfc or fttx network, mhz can help. The system is used in any network such as hfc, rf over glass or rf overlay in fttx applications. Todays modern longhaul dwdm systems use several advanced optical components to replace multiple repeaters with a single optical device. Once the levels are verifi ed, connect the cleaned lcapc connector to the edfa optical input port. Pre amplifier edfa optical amplifier for sdh networks this erbiumdoped fiber amplifier edfa is designed for the synchronous digital hierarchy sdh networks. Cisco ncs 2000 series line card configuration guide, release 10. An optical amplifier is a device that amplifies an optical signal directly, without the need to first the most common example is the erbium doped fiber amplifier edfa, where the core of a silica the amplification window of an optical amplifier is the range of optical wavelengths for which the amplifier yields a usable gain.
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. You should observe the optical input and output led change from red to green if a signal is present. Semiconductor optical amplifier soa and erbiumdoped fiber amplifier edfa are two of the main types of optical amplifiers, and they were used in this simulation model to analyze their performance, with a data rate of 622 mbs stm4 level and 170 km. Characteristics of edfas advantages high power transfer efficiency from pump to signal power 50%. Comparison of the optical amplifiers edfa and soa based on. Available optical output levels range from to 24dbm. Edfa product ha5800 optical amplifier adopts the worlds top class pump laser and america ofs doped optical fiber.
The hybrid module consists of a count\ erpropagating raman pump unit and a variable gain \vg\ edfa. The wisi optical platform optopus is a highly flexible and high density platform for all kinds of rf optical networks. Finisars hybrid raman edfa module enables costeffective deployment of ultralong haul networks as well as the extension of existing longhaul, regional and metro networks, without the need for 3r oeo regeneration. Cisco ncs 2000 series line card configuration guide, release. An optical fiber amplifier is a fiber optic device used to amplify optical signals directly without conversion into electrical signals. Design and development of erbium doped fiber amplifiers. At5000 edfa optical amplifier solutions provider for fttx, rfog, and hfc. Introduction erbiumdoped fiber amplifiers are the by far most important fiber amplifiers in the context of. Erbiumdoped fiber amplifier edfa is an optical repeater device that is used to boost the intensity of optical signals being carried through a fiber optic communications system. Soa soa amplifier uses a technique similar to that of edfa but without doping the optical fiber. The dwdm edfa is a lownoise, gainflattened cband optical erbium doped fiber amplifier edfa designed to extend the distance in dense wavelengthdivision multiplexing dwdm optical infrastructure. Erbium doped fiber amplifier edfa, semiconductor optical amplifier soa, and raman fiber amplifier rfa.
Finisars single channel micro edfa is a costeffective micro processorcontrolled module for amplifying single channels in the cband. The fiber amplifier is a key enabling technology for high speed optical communication. An optical fiber is doped with the rare earth element erbium so that the glass fiber can absorb light at one frequency and emit light at another frequency. Customized preamplifier edfa optical amplifier for sdh networks and customize fiber optical products from fs. Optical fiber transmission has revolutionized networking and communication systems.
The high density hd erbium doped fiber amplifier edfa is designed to fit into a prisma xd chassis or a standard full height prisma ii chassis with the use of a host module. Boosting of an optical signal without any conversion of the. The device features wide input power, tunable output power and low noise figure which are used in longhaul transmission applications, especially for pdh, sdh, sonet and optical. The multicom mulotc edfa v 1550nm highperformance erbium doped fiber amplifier edfa module with a jdsu pump laser is a low noise 1550nm optical amplifier designed to be used in the multicom optical transport chassis mulotcchv. This site is like a library, use search box in the widget to get ebook that you want. The optical signal is injected into this fiber, along with the light from a special pump laser that is designed to excite the erbium ions. However, direct measurement is difficult because the actual ase is.
Home forums general difference between using optical amplifier and edfa difference between using optical amplifier and edfa fayiqa naqshbandi joined april 2015 spectator i would like to know what is the main difference between using edfa and optical amplifier when both can be used to give near about same performance is there more info. Dec 29, 2014 advanced optical components erbiumdoped fiber amplifier edfa december 29, 2014 october 10, 2017 admin many fiber optic applications, such as longhaul dwdm systems, require amplification of the optical signal. Customized preamplifier edfa optical amplifier for sdh. At the heart of edfa technology is the erbium doped fiber edf, which is a conventional silica fiber doped with erbium. A large signal input power is considered in this case, since high signal input helps to produce high output power, which is necessary to boosterpower amplifiers. In the past, this entailed using expensive electronic repeaters at intermediate points every 100 km. We have a series of erbiumdoped fiber amplifier edfa optical amplifiers, including dwdm edfa for dwdm systems, catv edfa for catv applications, sdh edfa for sdh networks. Optical amplifiers amplify an optical signal directly, without the need to first convert it to. Com dwdm edfa fiber amplifier is a lownoise, gainflattened cband optical erbium doped fiber amplifier designed to extend the distance in dwdm optical infrastructure. Pdf erbiumdoped fiber amplifier edfa is an optical amplifier used in the c band and lband, where the loss of telecom optical fibers. Cisco prisma ii hd edfa optical amplifier from mhz.
Erbiumdoped fiber amplifier edfa is an optical repeater device that is used to boost the intensity of optical signals being carried through a fiber optic communications system how it works. It provides customers with the capability to extend their 100ghz, up to 40 channels, 2. White paper introduction to optical amplifiers finisar corporation. White paper introduction to edfa technology optical. It provides customers the capability to extend up to 40 channels, 2. Thorlabs corepumped erbiumdoped fiber amplifiers edfas offer 20 dbm 100 mw output power with a low noise figure of edfa with minimal sensitivi. Optical amplifier edfa erbiumdoped fiber amplifier for. The em316ea family of cband edfa optical amplifiers is part of the fiber driver optical. Multiple communication devices, like optical transmitters and receivers, are used in optical fiber. The next time you need, linear video or multiscreen, mpeg, docsis or xphy tm, ip or rf resources to support the operation of multivendor, multitechnology products deployed in your hfc or fttx network, mhz can help choose from a customized package of remote fractional engineering hours you can use over an extended.
At the heart of edfa technology is the erbium doped fiber edf, which is a conventional silica fiber doped. The edfa uses a short length of optical fiber that has been treated or doped with the element erbium. The amplifier functions as a booster amplifier by default. Optical amplifiers download ebook pdf, epub, tuebl, mobi. Customized preamplifier edfa optical amplifier for sdh networks buy and customize fiber optical products from fs.
Aug 25, 2019 an optical amplifier is a device that amplifies an optical signal directly, without the need to first the most common example is the erbium doped fiber amplifier edfa, where the core of a silica the amplification window of an optical amplifier is the range of optical wavelengths for which the amplifier yields a usable gain. Common fiber optical amplifiers include erbiumdoped fiber amplifier or edfa optical amplifier, raman fiber amplifier, and silicon optical amplifier soa. Dra and an erbiumdoped fiber amplifier edfa for 160. Boosting of an optical signal without any conversion of.
Measurement of nf requires accurate measurement of the edfa amplified spontaneous emission ase level. Jan 10, 2015 a passive optical amplifier amplifies the signal directly without the need for optical toelectric and electricto optical conversion. Chapter 5 provision optical amplifier cards card overview optedfa17 the optedfa17 amplifier has four sets of optical ports located on the faceplate. A metastable energy level at 4i2, with a long decay time 10 ms, is essential for collecting ions for a population inversion.
Finisars hybrid ramanedfa module enables costeffective deployment of ultralong haul networks as well as the extension of existing longhaul, regional and metro networks, without the need for 3r oeo regeneration. Many fiber optic applications, such as longhaul dwdm systems, require amplification of the optical signal. Check the input optical level with a power meter to be certain it is within the input operational range of the edfa. The aim of this article is to establish a comparison between the edfa erbium doped fibre amplifier and soa semiconductor optical amplifier optical amplifiers in the wdm wavelength division. There are several different optical amplifiers with which to passively amplify an optical signal. Click download or read online button to get optical amplifiers book now. An erbiumdoped optical fiber amplifier, or edfa, is an optical repeater that amplifies an optical laser beam directly, bypassing optoelectronic and electrooptical oe and eo conversion.
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