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