Fiber lasers oleg g okhotnikov pdf files

Optical frequency upconversion by supercontinuumfree widelytunable fiber optic cherenkov radiation haohua tu and stephen a. Modelocked ytterbium fiber laser tunable in the 9801070. This, together with fuel efficient engines, enables her to have a transit speed of 12 knots. It was found that different from the case of the polarization locked vector soliton formed in the laser, two extra sets of spectral sidebands always appear on the soliton spectrum of the polarization rotating vector solitons. Costeffective fiber lasers for material processing. A yu chamorovskiy and oleg g okhotnikov 2012 quantum electronics 42 964. Epperlein is a landmark in the recent literature on semiconductor lasers because it fills a longstanding gap between many excellent books on laser theory and the complex and challenging endeavor to fabricate these devices reproducibly and reliably in an. Without his enthusiasm and determination this thesis would never been. Since 1999 he has been a fulltime professor at optoelectronics research centre, tampere university of technology. Numerical study on solitary sesam modelocked fiber laser. Wavelength dependence of catastrophic optical damage.

Britta leonhauser, heiko kissel, andreas unger, bernd kohler, and jens biesenbach. Optoelectronics research centre at tampere university of. Boppart biophotonics imaging laboratory, beckman institute for advanced science and technology. The relation between thickness and warpage in a disk.

Okhotnikov references 4 2 highpower fiber lasers and amplifiers. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Generating an epub file may take a long time, please be patient. Multifunctional freestanding singlewalled carbon nanotube. Osa passively synchronized erbium 1550nm and ytterbium. Highrepetition rate modelocked ytterbium fiber laser. We report a first dissipative dispersivemanaged soliton fiber laser operating at 2. Wavelengthtunable modelocked fiber laser with birefringenceenhanced cavity chuanhang zou1, tianxing wang1, zhijun yan2, qianqian huang1, mohammed alaraimi3,4,5, aleksey rozhin3,4, chengbo mou1, 1key laboratory of specialty fiber optics and optical access networks, shanghai university, shanghai 200072, p. An nd modelocked fiber laser is introduced as a way to obtain picosecond pulses in the near infrared 900 nm.

China 2school of optical and electronic information, national engineering. Furthermore, thuliumdoped fiber lasers provide an excellent sources for frequency conversion towards the infrared between 3 and 10. We exploit the large anomalous dispersion in the waist of a fiber taper to offset the intracavity normal chromatic dispersion of an ybdoped fiber laser. For development of opsdls operating at 630 670 nm, 940 nm, 1040 nm and 1220 nm. Practical aspects of fiber lasers, especially when handling high power 2. Waferfused 0 and 1550nmwaveband vertical external cavity lasers.

Eos topical meetings at capri 2009 27 30 september 2009,capri, italy 3rd eos topical meeting on optical microsystems o. Osa fiber taper for dispersion management in a modelocked. In a conventional single transverse mode laser such as formed with a singlemode fiber, lasing occurs in longitudinal eigenmodes. Itisrecognizedthattherearenoalternativestoopticaltechnologies in communication because nonoptical methods cannot cope with the modern demand for information. Fiber lasers kindle edition by okhotnikov, oleg g download it once and read it on your kindle device, pc, phones or tablets. The modelocked laser produces 572fs soliton pulses at 571. The fiber taper provides sufficient anomalous dispersion to ensure soliton operation of the modelocked laser.

Fiber lasers oleg g okhotnikov a comprehensive account of the latest developments and applications in this rapidly developing field, covering a wide range of topics, such as power scaling and short pulse generation, dispersion. Pulse dynamics in carbon nanotube modelocked fiber lasers. The au layer is electronbeam evaporated on a selfassembled monolayer of 3mercaptopropyl trimethoxysilane on an oxidized silicon substrate and shows a rootmeansquare surface roughness of. A fiber laser is a laser in which the active gain medium is an optical fiber doped with rareearth. Laser transitions characterization by spectral and thermal.

Singlyresonant sum frequency generation of visible light in a semiconductor disk laser martin thalbitzer andersen 1, peter j. The book semiconductor laser engineering, reliability and diagnostics by dr. Yag lasers pulsed lasers in ns range for a broad range of micromachining applications sub ns fiber lasers are a cost efficient alternative for ultra short pulse lasers for many applications. Forc photonics fiber optics research center ras erbium doped fibers article edf 1412535 sn y360 edf1412535 is designed for lownonlinearity and high pulse energy amplifiers. The first bidoped fiber laser delivering subpicosecond soliton pulses was demonstrated. A fiber grating of 12 mm length was realized with a period of 1. Teppo noronen,a,1 sergei firstov,2 evgeny dianov,2 and oleg g.

Sign up for your own profile on github, the best place to host code, manage projects, and build software alongside 40 million developers. Power and wavelength scaling using semiconductor disk. The relation between thickness and warpage in a disk injection molded from fiber reinforced pa66. The cavity comprised of allanomalousdispersion fiber employs chirped fiber bragg grating, which ensures netnormal cavity dispersion and semiconductor saturable absorber for modelocking. Okhotnikov tampere university of technology, optoelectronics research centre, korkeakoulunkatu 3, 33720 tampere, finland tampere university of technology, optoelectronics research center, korkeakoulunkatu 3, 333101 tampere, finland. Optimizing the laser cavity to enhance the crossphase modulation in the gain materials has yielded a large mismatch of 20 m between the two laser. The all fiber design using dichroic fiber mirror combined with photonic bandgap fiber dispersion compensator is highly stable and requires virtually no alignment. Okhotnikov, 8 ns fiber laser q switched by the resonant. Novel opticalfiber design could reduce inefficiency and. Design and optimization of hollowopticalfiber gas cell for. Fundamental mechanisms of laser induced damage in optical. Feedbackinduced catastrophic optical mirror damage comd on. Use features like bookmarks, note taking and highlighting while reading fiber lasers.

Rp photonics encyclopedia pulse compression, shortening. Written by active authorities from academia and industry, this edition brings a fresh look to many essential topics. Modeling and technologies of ultrafast fiber lasers brandon g. With the taper removed from the cavity, the laser operates in a net normal dispersion regime. Okhotnikov, picosecond sesambased ytterbium modelocked fiber lasers, quantum electronics, 10, 1, 2004. Okhotnikov, raman fiber laser pumped by a semiconductor disk laser and mode locked by a semiconductor saturable. S09 1st eos topical meeting on lasers final call topics 3rd eos topical meeting on optical microsystems o. Okhotnikov power and wavelength scaling using semiconductor disk laser bismuth fiber mopa systems, proc. Infrared light emitted from the spectrometer vertex 70, bruker optics is focused on the input end of a coupling hollow fiber by using a goldcoated, offaxis mirror with a focal length of 30 mm.

Optoelectronics research centre at tampere university of technology prof. Fiber lasers that bridge the shortwave to midwave regions. Erbium and ytterbium fiber lasers were firmly synchronized by nonlinear interaction in active media placed in the same cavity. Pulse dynamics in carbon nanotube modelocked fiber lasers near zero cavity dispersion jinzhang wang,1 zhiping cai,2 ping xu, 3 geguo du, fengqiu wang,4 shuangchen ruan,1, zhipei sun,5 and tawfique hasan6 1college of optoelectronic engineering, shenzhen university, shenzhen 518060, china 2department of electronics engineering, xiamen university, xiamen 361005, china. The tdcf amplifier was first conceived and demonstrated at tampere university in the research group of professor oleg okhotnikov in 2008. The requirements for electron welding beam current control, which are not specified by the international standard iso 1474416 yet, were considered. Spie 9349, vertical external cavity surface emitting lasers vecsels v, 93490e 4.

Dawson 2 and christian pedersen 1 1dtu physics, department of physics, technical university of denmark, 2800 kgs. Optical frequency upconversion by supercontinuumfree widely. The largest database of photonics products the website provides. We have fabricated stateoftheart key components from the same single component multifunctional swcnt material. Tapered double clad fiber laser 0 200 400 600 800 1200 0 100 200 300 400 500 600 w launched pump power 915nm, w. Control of multiple solitons in mode locked figureofeight micro structured fiber lasers to improve soliton stability. Okhotnikov abstract a single frequency waferfused semiconductor disk laser at 1. Pdf spatiotemporal modelocking in multimode fiber lasers. Bismuthdoped fibre amplifier for the range 0 40 nm. Okhotnikov april 8, 1951 to april 8, 2016, an inspired scientist who has. Ybdoped fiber laser with dispersion compensation by an index guiding photonic crystal fiber was demonstrated. S09 plasmonics photonic crystals and metamaterials optical microsystems and microsensors. Evince conference presentations and holds 6 patents see more see less buy both and save 25 fiber lasers us 14500 and semiconductor disk lasers physics.

Novel segmentation technique to enhance detection of fast. Moreover, a companion cd with matlab files of programs to simulate these fibers would be very helpful. Pdf we present a birefringent ybdoped tapered doubleclad fiber with a record core diameter of 96. Ultrafast fibre laser systems based on sesam technology. Okhotnikov abstract the 9801105nm tuning range is achieved by optimization of nonlinear reflection and bandgap characteristics of the multiplequantumwell saturable absorber and by proper engineering of the laser cavity. Okhotnikov published more than 280 journal articles, a hundred conference papers, and numerous patents, many of which represented. Technical support issues arising from supporting information other than missing files should be addressed to the authors. Optimization of modelocked fiber lasers by intracavity dispersion compensation and repetition rate stabilization is described. Fundamental mechanisms of laserinduced damage in optical materials. Singlyresonant sum frequency generation of visible light. Optical fiber telecommunications volume vib 6th edition. On the other hand, the solidstate lasers, 14, including fiber lasers 15, can emit hundreds. Novel bidoped modelocked fiber sources operating at a wavelength of 1.

Picosecond sesambased ytterbium modelocked ber lasers core. Jan 16, 20 novel optical fiber design could reduce inefficiency and enable faster transmission of datacarrying light pulses. We report a simple and rapid method to prepare multifunctional freestanding singlewalled carbon nanotube swcnt films with variable thicknesses ranging from a submonolayer to a few micrometers having outstanding properties for a broad range of exceptionally performing devices. Wavelength dependence of catastrophic optical damage threshold in 980nm semiconductor diode lasers daren lock, stephen j. Polarization rotation vector solitons formed in a fiber laser passively mode locked with atomic layer graphene were experimentally investigated. Modelling of the fiber lasers since the models are generally simplified ones.

What links here related changes upload file special pages permanent link page. The efficiency and output power of this type of fiber lasers could reach higher. Okhotnikov 750w doubleclad ytterbium tapered fiber laser with nearly theoretically limited efficiency, proc. Okhotnikov during the photoinscription process the optical fibers where connected to a broadband spectrum of an ybdoped fiber ase source and to an optical spectrum analyzer osa ando aq6317b with the resolution of 0. Fiber lasers that bridge the shortwave to midwave regions of the infrared spectrum stuart d. As a result, continuouswave cw fiber lasers, optical amplifiers and superluminescent sources based on bismuth fibers operating in the wavelength range from 1.

Pdf ultralarge core birefringent ybdoped tapered double. Okhotnikov abstractusing semiconductor saturable absorber mirrors and a gratingpair dispersion compensator, we obtain reliable selfstarting mode locking of a ytterbium yb fiber laser tunable over 125 nm. Actively qswitched ytterbium tapered fiber laser actively qswitched laser with tdcf generated stable emission at 1065 nm over a wide repetition rate range of 0 hz 150 khz, with the highest measured pulse energy of 1. Title polarization rotation vector solitons in a graphene. Hene d d e f f hecd g h i light source laser na he hg h cd laser hg hg hg wavelength nm 632. Bifurcations leading to the appearance and breakup of the modelocking regime are studied numerically. Application of the manakovpmd equation to studies of signal. Featuring contributions from leading fibre laser scientists such as oleg okhotnikov, andreas tunnermann, philip russell, frank wise, sergei turitsyn and stuart jackson. Feedbackinduced catastrophic optical mirror damage comd on 976nm broad area single emitters with different ar reflectivity. In combination with the exceptional working characteristics for a. Spectral tuning of a modelocked ybdoped fiber laser over a 90nm range is reported. Publication 905 tommi hakulinen towards stabilized, short pulse qswitched fiber lasers. Worldwide, it is accepted that the kilowatt level, fast axial flow co2 lasers are an ideal light source, with high efficiency and good quality of light beam for highpower laser industrial processing. The efficiency and output power of this type of fiber lasers could reach higher than 60% and 20 w.

Recent citations graphenews2 heterostructure saturable absorbers for ultrashort pulse generation in lband passively modelocked fiber lasers wenxiong du et al. Pdf control of multiple solitons in mode locked figure. Circuitry of electron beam welding current control oleg k. Ipg is market leader for fiber lasers single mode lasers for fine cutting and micro welding applications qcw lasers to replace lamp pumped nd. Semiconductor laser engineering, reliability and diagnostics. A buttcoupled sesam provided reliable selfstarting at a pump power of 150 mw. Applications of nonlinear fiber optics, 2010, 528 pages. Conceptual outline of modelocked multimode fiber lasers.

Okhotnikov tampere university, finland was awarded the ph. Metakov once again expanded its machinery, this time with fiber laser genius lgf 1530600w by prima power. Compact laser diodebased femtosecond sources c t a brown, m a cataluna, a a lagatsky et al. 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. The rp photonics buyers guide contains 20 suppliers for pulse compressors. The search tool is an easy way to find products across multiple manufacturer catalogs based on your specifications.

Written by active authorities from academia and industry, this edition brings a fresh look to many essential topics, including devices, subsystems, systems and networks. Novel segmentation technique to enhance detection of fast moving objects with optical sensors oleg gusyatin mit lincoln laboratory abstract depending on the mode of operation, an optical sensor records signatures of sidereal and nonsidereal objects as. Within the range of 1 and 3kw abroad, these lasers have replaced most lateraldirection flow and slowspeed axialflow devices. Jul 15, 2009 the allfiber tmdoped doubleclad laser was reported, incorporating a phase mask scanning technology writing fbg directly into the tmdoped multimode fiber core as cavity mirror, using 800 nm femtosecond laser sources. The fiber gain medium allows for efficient pumping of the 900. Prokhorov general physics institute, moscow 119991, russia. A comprehensive account of the latest developments and applications in this rapidly developing field, covering a wide range of topics, such as power scaling and short pulse. Fiber lasers wiley online books wiley online library.

This step has greatly supported a series of measures to increase production capacities. The main factor limiting the output power of fiber lasers is the. A unique feature of the vessel is the innovative and patented hull shape. Figure 1 shows a schematic view of the measurement setup for gas absorption using an ftir spectrometer and a hollow fiber gas cell. Industrial micromaterials processing applications with fiber. Valery filippov, yuri chamorovskii, juho kerttula, konstantin golant, and oleg g. A twocolor femtosecondpicosecond pulse train at largely separate wavelengths of 1. Selfcompression of multimillijoule femtosecond laser pulses and dramatic increase of the peak intensity are found in pressurized helium and neon within a. The very high peak power that can be achieved with femtosecond pulses means that in principle, nonlinear frequency conversion.