As a market and technology leader in optical amplifiers for over two decades, lumentum leverages vertical integration and deep knowhow to continue to offer points of. Advanced optical components erbiumdoped fiber amplifier. Todays modern longhaul dwdm systems use several advanced optical components to replace multiple repeaters with a single optical device. However, direct measurement is difficult because the actual ase is. Optical amplifiers provided by fibermart are designed for all network segments access, metro, regional and long haul and applications telecom, cable and enterprise. After knowing the basic information of edfa and raman optical amplifiers, you must consider that the raman amplifier performs better for two main reasons. Mulotcedfavx description the multicom mulotcedfav 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. Emcore designs and manufactures the most complete and advanced line of optical components and systems for catv broadband transport and access networks. Erbium doped fiber amplifier commercially available since the early 1990s. The edfa 4400a optical amplifier is using a topclass pump laser. Aug 11, 2014 the prisma ii optical network allows for best in class architectures with increased reliability, scalability, and costeffectiveness. 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. Edfa mode for single wavelength applications, which allows the.
Singlesupply, highspeed, precision logarithmic amplifier. Boosting of an optical signal without any conversion of. 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. The primary difference is that they do not have a resonator. 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. Combined edfa and raman amplifications with only an edfa at the transmit end the optical power level decreases over the fiber length with an edfa and raman the minimum optical power level occurs toward the middle, not the end, of the fiber. Firstly, it has a wide band, while the band of edfa is only from 1525 nm to 1565 nm and 1570 nm to 1610 nm. 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. The second value is for units with the osc z determines if the unit supports integrated optical supervisory channel for endtoend communications. Ha5800a fttp edfa, erbium doped fiber amplifier, optical. 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. Cg mode for single wavelength applications, which allows the edfa to amplify the optical input by a fixed amount regardless of optical input power constant power chp. The tyco electronics cband edfa is a lowcost, compact, and flexible optical amplifier solution optimized for a variety of.
Doped fiber amplifiers edfas are designed to increase signal transmission distance making them ideal optical amplification solutions for. Page 3 of 5 specifications at5000 edfa erbiumdoped fiber amplifier 19 1ru item description operating wavelength 1540 nm to 1563 nm. Booster edfa amplifiers fiber amplifiers for long haul systems. We were the first to implement linear fiber optic transmission for the cable industry and we continue to. Emcore erbium doped fiber amplifiers edfa are ideal building blocks for system integrators to extend the fiber links for longhaul signal transport, highperformance supertrunking, high power distribution networks, and sensing and control systems. In the past, this entailed using expensive electronic repeaters at intermediate points every 100 km. At5000 edfa optical amplifier solutions provider for fttx, rfog, and hfc.
Edfa4400a series 1550nm catv erbium doped fiber amplifier. 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. With an edfa and raman the minimum optical power level occurs toward the middle, not the end, of the fiber. The edfa r employs an intelligent temperature control system by utilizing a special temperature control circuit and ventilating heat, resulting in a reduction of up to 30% in power consumption. Product description juniper networks optical inline amplifier is a standalone 1 u bidirectional erbiumdoped fiber amplifier edfa that provides periodic amplification of coherent dense wavelength. Pdf comparison of the optical amplifiers edfa and soa. Common fiber optical amplifiers include erbiumdoped fiber amplifier or edfa optical amplifier, raman fiber amplifier, and silicon optical amplifier soa. 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. 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. The map edfa has a saturated output power ranging from 14 dbm to 21 dbm, features noise figures as low as. The high density hd erbium doped fiber amplifier edfa is designed to fit into a prisma xd chassis or a standard full. For a general introduction to optical amplifiers, please see finisars white paper introducti on to optical amplifiers. Amplifier edfa laser optical density measurement photodiode signal compression amp log, logratio function analog signal compression in front of analogtodigital adc converter absorbance measurement description the log114 is specifically designed for measuring lowlevel and wide dynamic range currents in communications, lasers, medical. 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. The ap3370 erbiumdoped fiber amplifier edfa modules are designed to meet the need for cband testing of active and passive components. Optical amplifiers are important in optical communication and laser physics.
Doped fiber amplifiers pm edfas are designed for use in the. Optical amplifiers venkat venkataramanan instute for opcal. Emcore 1550 nm catv optical amplificationedfa emcore. The system is used in any network such as hfc, rf over glass or rf overlay in fttx applications. Edfa stands for erbium doped fiber amplifier and it is one type of many different optical amplifiers. The wisi optical platform optopus is a highly flexible and high density platform for all kinds of rf optical networks. Pt, due to quantum noise, the onesided power spectral density variance per effective noise bandwidth of. The em316ea family of cband edfa optical amplifiers is part of the fiber driver optical. This edfa module is ideal for todays highly dynamic networks and cost sensitive market. Erbium doped fiber amplifier cgbefapm series, polarization. Lumentum offers the most comprehensive portfolio of highperformance amplifiers raman, high power edfas, wide dynamic gain range edfas, edfa arrays in the industry. Available optical output levels range from to 24dbm. Mrvfdedfa mrv communications pdf catalogs technical.
Product overview the cisco ncs 2000 offers an enhanced optical amplifier card figure 1 operating in the cband region of the. Semiconductor optical amplifier at 915nm, 980nm, 1060nm, 10nm, and 1550nm in 14pin butterfly package. The prisma ii optical network allows for best in class architectures with increased reliability, scalability, and costeffectiveness. To transmit a signals over long distances 100km, to compensate attenuation losses. The edfa4400a optical amplifier is using a topclass pump laser. Our highpower edfa offers a flexible, lowcost solution for large area networks and features an embedded total touch screen lcd for easy operation. Optopus is designed to meet the high requirements and reliability necessary for todays networks. 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. Junipers optical inline amplifier provides highcapacity coherent dwdm transport with industryleading performance and automation.
The gain for an erbiumdoped fiber amplifier is shown in figure 7. Optical amplifiers for intermediate line amplifier ila. 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. Edfa series optical preamplifier edfa amplifier edfa datasheet connector db25. Edfa education kit manual page 2 of 26 generated by stimulated emission. We were the first to implement linear fiber optic transmission for the cable industry and we continue to develop leadingedge technologies for cable hfc networks. These amplifiers provide high power, high reliability, and superior optical performance. The hybrid module consists of a count\ erpropagating raman pump unit and a variable gain \vg\ edfa. Thorlabs corepumped erbiumdoped fiber amplifiers edfas offer 20 dbm 100 mw output power with a low noise figure of cisco ncs 2000 offers an enhanced optical amplifier card figure 1 operating in the cband region of the. A switchablegain optical amplifier functioning in the. Jds uniphase edfa datasheet, cross reference, circuit and application notes in pdf format. The em316ea family of cband edfa optical amplifiers is part of the fiber driver optical multiservice platform solution. Edfa amplifier archives tutorials of fiber optic products.
Optical amplifier edfa, ap3370 series erbiumdoped fiber amplifier modules, high gain and low noise figure, the saturated. Many fiber optic applications, such as longhaul dwdm systems, require amplification of the optical signal. 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. Edfa product ha5800 optical amplifier adopts the worlds top class pump laser and america ofs doped optical fiber. It provides customers the capability to extend up to 40 channels, 2. Datasheet 1 fiber driver optical amplifier modules provide multifunction, low noise, erbiumdoped fiber amplifier edfa solutions that are ideal for metro dense wavelength division multiplexing dwdm applications. Edfa optical amplifier user manual threshold value for alarm chapter 9. Edfa series optical preamplifier edfa amplifier edfa module oac10u2000ca edfa inline amplifier optical amplifier edfa edfa c. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Thorlabs optical amplifiers are available as complete benchtop systems or as pigtailed butterfly packages. Optical amplifiers for intermediate line amplifier ila elimination the first db value for maximum span optical budget represents budget for units without the osc. Edfa optical amplifiers em316ea and em316edfa highlights three optical. Boosting of an optical signal without any conversion of the. Com dwdm edfa fiber amplifier is a lownoise, gainflattened cband optical erbium doped fiber amplifier designed to extend the distance in dwdm optical infrastructure.
Edfa4400a 1ru series is a high power multiport optical amplifier operating within 15401563nm wavelengths. Optical amplifiers amplify an optical signal directly, without the need to first convert it to. Features integrated with 4 add and 4 drop amplifiers builtin control electronics flat fixed gain up to 20 db agc operation mode fast transient control mpoapc connectors semicustomized design flexibility. The optical inline amplifier is a switched gain inline amplifier that provides a fully automatic and dynamic amplifier range 035 db supporting up. It is an optical amplifier that can directly enhance the optical signals without making additional conversion. Thorlabs also offers a benchtop erbiumdoped fiber link amplifier developed by our strategic partner. Up to two hd edfa modules can be populated into a host module which requires a single service slot in the prisma ii chassis. Our line of benchtop optical amplifiers includes ytterbiumdoped fiber amplifiers ydfas, a praseodymiumdoped fluoride fiber amplifier pdfa, and erbiumdoped fiber amplifiers edfas. Edfa product ha5800 optical amplifier adopts the worlds top class pump laser and. Doped fiber amplifiers allow operators to use 1550. An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal.
The multicom mulotcedfav 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. 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. Rack mount single channel edfa optical communication o. At the heart of edfa technology is the erbium doped fiber edf, which is a conventional silica fiber doped with erbium. By using the edfa optical amplifier, the attenuated signal power can be amplified into strong signal level to meet the requirement of the longhaul applications, especially the longhaul dwdm networks.
Edfa 4400a 1ru series is a high power multiport optical amplifier operating within 15401563nm wavelengths. Mar 03, 2011 edfa stands for erbium doped fiber amplifier and it is one type of many different optical amplifiers. Optical amplifier edfa erbiumdoped fiber amplifier. Pdf rs232 edfa edfa series optical preamplifier fiber erbium doped amplifier gr12core edfa c pre amplifier automatic pump control edfa amplifier dwdm inline edfa gain module edfa. The als system senses when the link is reestablished and will restart the system automatically. View sample datasheet pdf specifications spectrum pin configuration. Measurement of nf requires accurate measurement of the edfa amplified spontaneous emission ase level.
A metastable energy level at 4i2, with a long decay time 10 ms, is essential for collecting ions for a population inversion. It provides customers with the capability to extend their 100ghz, up to 40 channels, 2. Edfa series optical preamplifier edfa amplifier edfa datasheet connector db25 edfa c pre amplifier photo detector edfa amplifier edfa booster 17 db edfa text. Edfa mode for single wavelength applications, which allows the edfa to provide consistent optical. Edfa vs raman optical amplifier optical cables on fiberstore. The second value is for units with the osc z determines if the unit supports integrated optical supervisory channel for. 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. Eindhoven university of technology master an optical amplifier. It is mainly designed for catv applications, offering a flexible and lowcost solution for large area catv coverage mediumsized urban areas. Pdf comparison of the optical amplifiers edfa and soa based. Edfa series optical preamplifier edfa amplifier edfa module oac10u2000ca edfa inline amplifier optical amplifier edfa edfa c preamplifier 16f21 oac10u20. 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.
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