Oct 25, 2014 simulation of analytical model of erbium doped fiber amplifiber edfa. Nevertheless, the results found are in good qualitative agreement with the paper. 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 pumping direction and wavelength are set using an attached script, so the differences in pumping schemes can be easily compared. This paper involves the simulation of an edfa using optisystem and analyzes the gain and noise figure of edfa. Gain and noise figure performance of erbium doped fiber amplifiers edfa. Analyzing gain spectrum and ase amplified spontaneous. In 1, the noise performance of these devices is studied for both co and counterpropagating pump schemes. Optiwave is the emerging leader in the development of innovative software tools for the design, simulation, and optimization of components, links, systems and networks for the dynamically growing fields in photonics nanotechnology, optoelectronics, optical networks and other photonic applications. The parameters used in this simulation are displayed at figure 1 and they are similar to the values presented in table 1 1, except for the values of the absorption and emission cross sections. Cad based software for lighting simulation with nonsequential ray trace capability. However, the simulink model developed in 3 provides for a dynamic edfa model with the ability to modify the input. Photonics design software with an emphasis on photometry, optical calculations, and laser simulation. Maxfem is an open software package for electromagnetic simulation by using finite element methods.
With product ranges available offering polarization maintaining, bendinsensitive, rareearth doped, claddingpump and. 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 optical fiber length for each simulation model. Optisystem enables users to plan, test, and simulate in both the time and. Analysis of four channel cwdm transceiver modules based on. Comparison of the optical amplifiers edfa and soa based on the ber and factor in cband. The main difference opnet network simulator comparing to other simulators lies in its power and versatility. This example demonstrates modulation of a pumps optical power to produce gain modulation in an edfa, and is based on the parameters and results in 1.
To compare with the experimental results, an edfa is specially designed for simulation using the er doped fiber dynamic module, which is specially designed for the time scales on the order of microseconds or longer in the optisystem software, and the details of the algorithm for this module is based on the solution of the propagation and rate equations for transitions between. After comparing advantages and disadvantages between optisystem and matlab, optisystem software was selected to be used in designing edfa in wdm system. This simulator combines a steadystate model of a discrete raman amplifier ra with a spectrally resolved model for the erbium doped fiber amplifier edfa. This experiment was done using 8 channels cwdm system from 1470 to 1610 nm and uses two optical amplifier soa and hybrid edfa when connected in the system. Last year, the edfa simulink model produced in 3 was reproduced by jean jiang in 4. Simulation and experimental characterization of ramanedfa.
Circuitlogix is a software program that converts your personal computer into a fullyfunctioning electronics laboratory with thousands of components and devices that are easily interconnected. After many such experiments the statistics are computed, including the. It allows you to create and simulation different network topologies. The simulation uses transient simulation mode in optsim. With product ranges available offering polarization maintaining, bendinsensitive, rareearth doped, claddingpump and photosensitive fibers. Performance analysis of optical amplifiers edfa and soa. Gain flatness and noise figure optimization of cband edfa in 16 channels wdm system using fbg and gff chakkour mounia 1, aghzout ot man 2, a it ahmed badiaa 3, chaoui fahd 4. Simulation for photonics and optical circuit knowledge.
The gain of the edfa will be flattened by optimizing the fiber length and pump power. Erbiumdoped fiber amplifier description of the model. Optisystem projects based projects is a comprehensive simulation package developed by optiwave. Click here to go to our main page on computeraided design. Doped fiber amplifier and fiber laser file exchange. Comparison of the optical amplifiers edfa and soa based on.
It todays date is later than that, all bets are off. The software applications include single and multistage amplifiers for singlechannel or wdm networks. Longperiod fiber grating can act as a kind of wavelength selective loss device, in which the guided mode is coupled with forward transmit cladding modes. These software programs allow for simulations of edfa models that are mostly static. Comparison of the optical amplifiers edfa and soa based. Currently it is not possible to create a fully optical communication system without a software tool which simulates an optical communication line in real conditions prior to its construction. From this paper pumping power required for edfa can be investigated. A 980 nm pump and 1530 nm signal are launched into a 10. Pdf gain and noise figure performance of erbium doped. A scenario using cascade longperiod fiber gratings to flatten the gain spectrum of the erbium doped fiber amplifier edfa is presented. Optiamplifier is an optical amplifier and laser design software, developed to address all aspects of edfa raman amplifier engineering. We provide optisystem based projects which enable user to plan, test and simulate optical links in transmission layer of modern optical network for research scholars.
Rp fiber power is a powerful modeling software for designing and optimizing fiber devices in particular, fiber amplifiers and lasers as well as other types of waveguide lasers, but also fiber couplers, multicore fibers, helical core fibers and tapered fibers. A circuit simulator with graphical user interface gui qucs is a circuit simulator with graphical user interface. Not all of it has been checked out by us, so buyer beware. It guru provides prebuilt models of protocols and devices. Simulation software is available commercially which can realistically model an optical link. On this page we provide links to free eda software.
I want to implement edfa characteristics in matlab, not simulink. The numerical simulator allows us to calculate the overall gain, the noise figure nf, the optical signaltonoise ratio osnr and the signal and ase spectrum at the output of a raman. One demerit of edfa is that it adds noise and some nonlinearity to the amplified signal 14. Edfa for 1480nm pumping explicit pump power dependence.
The package can solve problems in electrostatics, direct current, magnetostatics and eddycurrents. Gain spectrum, gain saturation, and amplifier noise. Claddingpumped edfas have been identified as a solution for lband amplification. Calculates complex eigenmodes of propagation in planelayered structures. Ramakrishnan college of technology, trichy621112,tamil nadu. This is an elementary building block for power transient analysis in edfa based networks. A java simulation tool for fixedpoint system design.
The book covers the most issue of edfa, from components used in edfa to optical system, even simulation software i have used the software, but it is not easy to learn and not flexible for edfa design. Improved analysis of hybrid optical amplifier in cwdm system. I have read the propagation equation and rate equation about threeenergy level for erbium amplifier. A java simulation of a typical epr experiment by creating entangled particles that are sent to two detectors a and b. These tasks range from optimization of the associated optical components to estimation of system link budgets and power penalties. The ultimate tool for passive and active fibers devices. Simulation of analytical model of erbium doped fiber amplifiber edfa cite as sourav mondal 2020. Rp fiber power is a powerful modeling software for designing and optimizing fiber devices in particular, fiber amplifiers and lasers as well as other types of waveguide lasers, but also fiber couplers, multicore fibers, helical core fibers and tapered fibers the software offers both efficient power propagation and full.
Optimizing the edfa gain for wdm lightwave systems in this tutorial, we provide an example of the gain flatness optimization type. Optisystem is a comprehensive simulation package developed by optiwave. Thasleen banu5 department of electronics and communication engineering, k. Limitation in the intrinsic method of edfa gain optimization. Performance analysis of erbium doped fiber amplifiers and. Vpiphotonics doped fiber amplifiers sdm control of the differential modal gain through refrective index profile optimization.
Oct 24, 2017 simulation software is used widely to design equipment so that the final product will be as close to design specs as possible without expensive in process modification. Illustrates the effect of the fiber refractive index profile frip on the differential modal gain dmg in the erbiumdoped multimode fiber amplifier edfa. The simulations have been carried out using the commercially available software optiamplifier 6. Simulation results of the edfa characteristics such as.
The university of western australia, perth, wa, australia. Method analysis the software optisystem is used as a simulation tool to simulate the design for edfa in the wdm system. The two pump wavelengths considered were 980 nm and 1480 nm. This phd thesis, undertaken within the framework of modegap, covers the design and optimization of highperformance inline multimode erbiumdoped fiber amplifiers mmedfas or fewmode fm edfa for nextgeneration sdm transmission systems based on modedivision multiplexing mdm. Optiperformer optiwave introduces optiperformer, a freeware complement to optisystem. Syrthes is a general thermal software dedicated to transient thermal simulations in complex solid geometries. Home browse by title proceedings simutools 09 a java simulation tool for fixedpoint system design. Currently, the simulation tools available to investigate edfa dynamics consist of oasix and the photonic transmission design suite ptds 3. I wish there are some specialists showing up to solve my problem since it puzzles me for a long time. In that respect, the thesisbychapter format may be advantageous, particularly for students pursuing a phd in the natural sciences, where the research content of a thesis consists of many discrete experiments. The distinct difference also determines the most suitable photodetectors to be used at the receiver point of the optical amplifier circuit. Jun, 2011 optisystem is a comprehensive software design suite that enables users to plan, test, and simulate optical links in the transmission layer of modern optical networks.
Free circuit simulatorcircuit design and simulation software. Based on the simulation software optisystem, a 32channel dwdm pointtopoint transmission system simulation model was designed in this paper. Simulation of gain flattening 32 channels edfadwdm. Rare earth amplifiers become a major component as an active device in fiber optic communication systems because of there is no requirement of electrooptical conversion during the amplification process. Vpiphotonics sets the standard for software and services supporting endtoend photonic design automation and optical equipment configuration. Erbium doped fiber amplifiber edfa model file exchange. With over 30 years experience of the specialty optical fiber industry, fibercore ltd, the world leader in its field, is exclusively dedicated to the design, manufacture and commercialization of specialty fibers. We simulate a fiber amplifier with the following properties.
Opnet network simulator is a tool to simulate the behavior and performance of any type of network. Modelling of multimode erbiumdoped fibre amplifiers for. Simulation of analytical model of erbium doped fiber amplifiber edfa. Performance analysis of an optically amplified adddrop. The first implementation of active fiber optic amplifier was demonstrated in 1994 with erbiumdoped fiber amplifier edfa. To download the free 15day trial of circuitlogix student version, please provide the following information. Ngspice one of the popular and widely used free, open source circuit simulator from sourceforge. This work involves simulation of coarse wavelength division multiplexing cwdm transceiver for endtoend based on the effect of extinction ratio and with the use of edfa. Simulation of edfa raman hybrid amplifier achieving gain flattening for long haul dwdm systems bilal, syed muhammad, dr.
Finally, edfa simulator is used as an inline amplifier for amplitude shift keyingmodulated wdm fiber communication link where the gain clamping facility is. Also, simulink is a wellknown simulation tool that is less specialized than ptds and oasix, therefore being more readily available. The fiber exhibits singlemode propagation at the signal and pump wavelength. Optisystems cpp component, similar in operation to the matlab component, allows users to create their own custom components. Rp fiber power simulation and design software for fiber. Map erbium doped fiber amplifier medfa the map series erbium doped fiber amplifiers medfac1 meet some of the most demanding optical specifications including a lownoise version with downloads. Created to address the needs of research scientists, optical telecom engineers, system integrators, students and a wide variety of other users, optisystem satisfies the demand of the evolving photonics market for a powerful yet easy to use optical system design tool.
A singlestage forward or backward pumped 980 nm or 1480 nm doped fiber amplifier. The erbium doped fiber amplifier provides a way of amplifying all wavelength simultaneously. A parameter sweep is used in simulation to get the ase power exiting from the fiber end as the function of pump power. A computer based simulator for erbiumdoped fiber amplifier. Its awardwinning products are used by forwardlooking groups, product design and marketing teams from over 100 commercial corporations and educators in over 120 university programs across the world. Here we get a good idea of the bidirectional pumping scheme.
Free and open source circuit simulator software list. Clarity is paramount when determining the structurelayout of your dissertation. Simulation results of the edfa characteristics such as amplified spontaneous emission, gain. Both signal and pump modes have an approximately gaussian intensity distribution, with slightly different mode radii. Simulation bandwidth 50mhz option order sampling digit 14 digit. Demo illustrates electronic gain clamping of edfa using the picontroller in a wdm link. The commercial software namely optsim was used to model and design the edfa in the wdm system. It seems to me, the authors have deep experienced working background in this field.
Erbium doped fiber amplifier edfa for cband optical. In this paper the gain is investigated with various pumping power. The basic principles of dwdm system dwdm technology is to make full use of huge bandwidth resources from lowloss singlemode fiber district. In the last chapter a simulation is created for the comparisonof berandfactor while evaluating the. They enable the characterization of the gain, noise figure, and output power under unsaturated and saturated signal input regime. Simulation results of the edfa characteristics such as amplified spontaneous emission, gain, noise figure, and gain spectrum are compared with corresponding experimental values. Gain and noise figure analysis of erbium doped fiber.
Ngspice is developed by a collective effort from its users and its code is based on 3 open source software packages. Computer aided edfa design, simulation and optimization. In the mmedfas, minimizing the differential modal gain dmg is of. Circuit simulation software free download circuit simulation top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Simulation of various configurations of singlepump. Gain flatness and noise figure optimization of cband edfa. May 22, 2019 download quite universal circuit simulator for free. This system is simulated using opti system software to achieve gain flatness of edfa through variation of edfa pump power and input power of system. A real time multichannel dynamic erbium doped fiber amplifier edfa simulink model with flat gain and gain clamping facility has been developed on a matlab platform.
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