Fiber lasers based on erbiumdoped silica glass are active ly used in modern fiber optics. Jan 27, 2016 femtosecond optical pulses have applications in optical communication, astronomical frequency combs and laser spectroscopy. Bruce nyman, gregory cowle, in optically amplified wdm networks, 2011. Femtosecond pulse erbiumdoped fiber laser by a fewlayer mos2 saturable absorber article pdf available in optics letters 3915 august 2014 with 812 reads how we measure reads. These are just a handful of the essential questions answered in erbiumdoped fiber amplifiersthe first book to integrate the most influential current papers on this. Erdoped fiber lasers edfls can be viewed as edfas operating in the particular regime where coherent oscillation of ase occurs due to some feedback. Edfa erbium doped fiber amplifier physics and radio. The edfa amplification region varies from application to application and can be.
Erbiumdoped aluminophosphosilicate allfiber laser operating. Doped fiber amplifiers dfas are optical amplifiers that use a doped optical fiber as a gain medium to amplify an optical signal. The insertion loss of the interferometer is as low as 2 db. This erbium doped fiber act as a gain medium that amplifies an optical signal. In this paper, new configuration is proposed, investigated and analyzed. Erbiumdoped aluminophosphosilicate allfiber laser operating at 1584 nm mariepier lord, lauris talbot, olivier boily, tommy boilard, guillaume gariepy, sacha grelet, pascal paradis, nicolas gregoire, steeve morency, younes messaddeq and martin bernier centre doptique, photonique et laser copl, universite laval, quebec, g1v 0a6, canada. It consists of the active erbium doped aluminasilicate fiber pumped by the 980 nm laser diode through a 9801550 wdm. Pdf modeling erbiumdoped fiber amplifiers semantic scholar. The erbium doped fiber is pumped with a laser, at a wavelength of 980 nm or 1480 nm and produce optical gain in the 1550 nm region. Erbium doped fiber amplifiers edfas utilize erbium doped fibers as gain medium and the carrier population inversion is achieved by optical pumping. A widely tunable erbium doped all fiber laser has been demonstrated. Passively modelocked erbiumdoped fiber lasers have been extensively investigated with conventional fibers single clad but narrowly with doubleclad fibers.
The erbium doped fiber laser edfl has demonstrated to be the ideal source for optical communications due to its operating wavelength at 1550 nm. Acoustic sensor based on depres sed cladding erbium doped. Erbium doped fiber amplifiers are modeled using the propagation and rate equations of a homogeneous twolevel laser medium. It utilizes embedded fiber loop mirrors, tunable filters with a linear laser oscillation. Depending on the ion pair concentration, the pumping level and the photon lifetime in the laser cavity, numerical. The nonlinear dynamics of an erbiumdoped fiber laser is explained based on a simple model of the ion pairs present in heavily doped fibers. Fiber lasers, pmamplifiers rightwave highly doped erbium edf, ytterbium and thulium doped edf fiber type part number description and benefits application edf80 27308 a fiber with absorption of 80 dbm at 1530 nm. Validation of the applicability of mccumbers theory to the study of silicabased erbium doped fibers. Pdf erbium doped fiber laser and amplifier researchgate. Erbium doped fiber amplifiers is a bonafide work done by mr. Pdf modeling erbiumdoped fiber amplifiers semantic.
The core of the fiber is doped with erbium and is typically pumped with 980 or 1480 nm to produce gain around 1550 nm cband or 1590 nm lband. The interferometer is constructed by sandwiching a section of highly germanium doped fiber hgdf between two sections of singlemode fiber. It has a builtin web server and has back reflection function, also it has control mode. A typical setup of a simple erbiumdoped fiber amplifier edfa is shown in figure 1. Fibers with confined erbium doping are completely characterized from easily. Dec 04, 2016 erbiumdoped fiber lasers edfls description. Sband erbiumdoped fiber ring laser using a fiber bragg grating. It consists of the active erbiumdoped aluminasilicate fiber pumped by the 980 nm laser diode through a. Schematic of a tunable edfrl the pump laser for erbium doped fiber is usually a laser diode operating at wavelengths of 980 nm or 1480 nm, depending on the application. Numerical methods are used to analyze the effects of.
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. The singlemode laser dynamics is reductible to four nonlinear differential equations. Validation of the applicability of mccumbers theory to the study of silicabased erbiumdoped fibers. The tunable mmi filter was applied to fabricate a tunable erbium doped fiber laser via a standard ring cavity. Fiber laser and fiber amplifier are merged in one configuration which called erbium doped fiber laser and amplifier edfla or integrating edfl and edfa in one design. Rp photonics encyclopedia erbiumdoped fiber amplifiers. Random fiber laser based on an artificially controlled. Tunable erbiumdoped fiber ring lasers a tunable erbiumdoped fiber ring laser is shown in fig. This would predict output power clamping once ytterbium parasitic lasing starts, contrary to the observations that the output continued to grow albeit at a slower rate. A cw erbiumdoped fiber laser with 100w at 1554nm is.
A compact graphene qswitched erbium doped fiber laser using optical circulator and tunable fiber bragg grating li heping, xia handing, wang zegao et al. Erbiumdoped fiber amplifier edfa is a series of optical power amplifiers specially designed for optical fiber laser or optical fiber communication systems. Erbium doped fiber lasers for long distance communication. Erbiumdoped fiber laser erdoped fiber lasers edfls can be viewed as edfas operating in the particular regime where coherent oscillation of ase occurs due to some feedback means. A reconfigurable multiwavelength erbium doped fiber laser based on an all fiber multimode interferometer mmi is proposed and experimentally demonstrated. The scheme of the modelocked erbiumdoped fiber ring laser is shown infigure 2. High power lband erbium doped fiber laser pumped by a cband superfluorescent source sp chen, yg li, kc lu et al.
In the shown case, the active fiber is pumped with light from two laser diodes bidirectional pumping, although unidirectional pumping in the forward or backward. Passively modelocked erbium doped fiber lasers have been extensively investigated with conventional fibers single clad but narrowly with doubleclad fibers. Erbiumdoped fiber amplifiers are the by far most important fiber amplifiers in the context of longrange optical fiber communications. Characterization of a highpower erbiumdoped fiber laser. Written by one of the pioneers in the field, this unique reference provides researchers, engineers, and system designers with detailed. Engineered to be inherently photosensitive, these fibers enable short device lengths and good pump conversion efficiency. Erbiumdoped fiber an overview sciencedirect topics. The erbium fiber has a limit on the coil diameter of about 2 inches to obtain high reliability. Erbium doped fibers provide the basic building blocks for fiber optic amplifiers more. The nonlinear dynamics of an erbium doped fiber laser is explained based on a simple model of the ion pairs present in heavily doped fibers. Fiber laser and fiber amplifier are merged in one configuration which called erbium doped fiber laser and amplifier. Pdf erbiumdoped tunable fiber laser arturo castillo. Preliminary results are compared with fiber models to understand the influence of various design parameters in order to optimize the power conversion efficiency.
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. It is used in the telecommunications field and in various types of. We report results of a numerical investigation on twodimensional parameterspaces of a set of four autonomous, sevenparameter, firstorder ordinary differential. With a 980 nm pump laser for example, electrons from the ground energy. Its core is the erbiumdoped optical fiber, which is typically a singlemode fiber. Pdf femtosecond pulse erbiumdoped fiber laser by a few. Osa widely tunable erbiumdoped fiber laser based on. Erbiumdoped fiber laser systems exhibit a large variety of complex dynamical behaviors, bifurcations and attractors. Design and development of erbium doped fiber amplifiers. The pump current of the erbium doped fiber amplifier is adjustable through the instruments front panel, allowing the user to vary the gain and output power of the amplifier. Acoustic sensor based on depres sed cladding erbium. Here, a hybrid modelocked erbiumdoped fiber edf laser with topological insulator ti is proposed, for the first time to our best knowledge. A tuning range of 60 nm was obtained, ranging from 1549 nm to.
Such wavelength matches with the lowloss region of silica optical fiber. Erbiumdoped fiber amplifiers are modeled using the propagation and rate equations of a homogeneous twolevel laser medium. Hybrid modelocked ultrashortpulse erbiumdoped fiber laser. Widely tunable erbiumdoped fiber laser based on multimode. A fiber laser or fibre laser in british english is a laser in which the active gain medium is an optical fiber doped with rareearth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium. Group delay is the time required for information in a signal i. An efficient laser transmitter design is proposed using resonant pumping of an erbium doped fiber amplifier for a freespace optical communications source. Schematic of a tunable edfrl the pump laser for erbiumdoped fiber is usually a. Erbium doped fiber amplifier, catv 1550nm edfa, catv edfa. Therefore a population inversion and optical gain can be. Design and experimental characteristics of an erbium doped. The term doping refers to the process of using chemical elements to facilitate results.
Sband erbiumdoped fiber ring laser using a fiber bragg. The tunable mechanism is based on a novel tunable filter using multimode interference effects mmi. Conventional models of eryb co doped fibers assume all ytterbium ions are equally involved in the energy transfer with erbium ions, governed by a singular transfer rate. Fiber lasers edf150 ld 27326 a low dispersion fiber with. Tunable erbium doped fiber ring lasers a tunable erbium doped fiber ring laser is shown in fig. Erbium doped fiber laser er doped fiber lasers edfls can be viewed as edfas operating in the particular regime where coherent oscillation of ase occurs due to some feedback means. Preferred wavelength for highpower longdistance fiber communications. In addition, remote control of the pump current is supported by sending serial commands via a usb 2. It is used in the telecommunications field and in various types of research fields. A widely tunable erbiumdoped allfiber laser has been demonstrated. Osa reconfigurable multiwavelength fiber laser based on. They are related to doped fiber amplifiers, which provide light amplification without lasing.
The acbedf with a number of reflectors fabricated in the edf to. Therefore a population inversion and optical gain can be achieved in the erdoped. Fiber lasers, pmamplifiers rightwave highly doped erbium edf, ytterbium and thulium doped edf fiber type part number description and. Fibercores low absorption fibers offer bestinclass efficiency for cband amplifiers whilst higher. It should be noted, that erbium doped fiber in the cavity possess positive group velocity. A new method for the simple determination of crosssections 21 2. An erbiumdoped fiber amplifier edfa is a device that amplifies an optical fiber signal. A novel configuration of a new erbium doped fiber laser edfl is constructed and analyzed. A reconfigurable multiwavelength erbiumdoped fiber laser based on an allfiber multimode interferometer mmi is proposed and experimentally demonstrated.
Pdf characterization of a highpower erbiumdoped fiber. The most common example is the erbium doped fiber amplifier edfa, where the core of a silica fiber is doped with trivalent erbium ions and can be efficiently pumped with a laser at or near a wavelength of 980 nm or 1480 nm, and exhibits gain in the 1550 nm region. Here, a hybrid modelocked erbium doped fiber edf laser with. Edfls are used as sources for coherent light signal generation, while edfas are used as wavewave amplifiers for. Erbium doped fibers provide the basic building blocks for fiber optic amplifiers more specifically erbium doped fiber amplifiers edfas used in broadband optical networks and catv applications. One study explained this using elevated temperature at. The acbedf with a number of reflectors fabricated in the edf to enhance the distributed feedback is fabricated by using a femtosecond laser micromachining system. In the former case, the soliton fiber laser has been realized in several optical configurations using different modelocking mechanisms 5. Amplified spontaneous emission ase in erbiumdoped fiber has been used to construct light sources with the advantages of high output power and broad optical. A fiber laser or fibre laser in british english is a laser in which the active gain medium is an optical fiber doped with rareearth elements such as erbium, ytterbium, neodymium. Erbium doped fiber nuferns high performance psesf3125 is the ideal fiber for distributed feedback dfb and distributed bragg reflector dbr lasers. A compact graphene qswitched erbiumdoped fiber laser using optical circulator and tunable fiber bragg grating li heping, xia handing, wang zegao et al.
Pdf on jan 1, 2014, belloui bouzid and others published erbium doped fiber laser and amplifier find, read and cite all the research you need on. Fundamentals of erbium doped fiber amplifiers, 7 2. Erbium doped fiber amplifier and erbium doped fiber laser. The erbium doped fiber is pumped with a laser, at a. Pdf a novel configuration of a new erbium doped fiber laser edfl is constructed and analyzed. The scheme of the modelocked erbium doped fiber ring laser is shown infigure 2. With product ranges available offering polarization maintaining, bendinsensitive, rareearth doped, claddingpump and photosensitive fibers. Implementation of three functional devices using erbium. Below is the plot of group delay gd as a function of wavelength for three different pump powers for er304125 and er808125 erbium doped fiber. A novel random fiber laser based on an artificially controlled backscattering erbiumdoped fiber acbedf is proposed.
It utilizes embedded fiberloop mirrors, tunable filters with a linear laser oscillation. A tuning range of 60 nm was obtained, ranging from 1549 nm to 1609 nm, with a signal to noise ratio of 40 db. These are just a handful of the essential questions answered in erbiumdoped fiber amplifiersthe first book to integrate the most influential current papers on this breakthrough in fiberoptics technology. Continuous wave erbiumdoped fiber laser with output power of. Numerical methods are used to analyze the effects of optical modes and erbium confinement on amplifier performance, and to calculate both the gain and amplified spontaneous emission ase spectra. Femtosecond optical pulses have applications in optical communication, astronomical frequency combs and laser spectroscopy. Here, a hybrid modelocked erbium doped fiber edf laser with topological insulator ti is proposed, for the first time to our best knowledge. Erbium doped fiber ring laser, fiber bending sensor, fiber loop sensor, depressed cladding erbium doped fiber, s band.
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