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Sergei K. Turitsyn - One of the best experts on this subject based on the ideXlab platform.
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Random Distributed Feedback Raman Fiber Lasers
Raman Fiber Lasers, 2017Co-Authors: Sergey A. Babin, Sergey I. Kablukov, Ekaterina A. Zlobina, Evgeniy V. Podivilov, S. R. Abdullina, Ivan A. Lobach, A. G. Kuznetsov, Ilya D. Vatnik, Dmitry V. Churkin, Sergei K. TuritsynAbstract:In this chapter we briefly review the basic principles of Raman Fiber Lasers operating via random distributed feedback, including details of feedback mechanism, various cavity designs, and corresponding power and spectral characteristics, as well as their statistical properties. We also compare performances of the random Raman Fiber Lasers (RRFLs) with that for conventional Raman Fiber Lasers (RFLs) with linear cavity based on two reflectors. The performance analysis includes polarization management, optimization of conversion efficiency, cascaded generation of higher Stokes orders, opportunities for short-wavelength generation via direct pumping by high-power laser diodes, or frequency doubling of random Raman Fiber laser radiation. Pulsed operation of random Raman Fiber Lasers via active or passive Q-switching is also analyzed. The analysis shows that the output characteristics of Raman Fiber Lasers with random distributed feedback reached to the moment already outperform in many aspects those for conventional Raman Fiber Lasers. The unique performance of random Fiber Lasers opens the door to their application in advanced technologies, such as long-distance amplifier-free transmission and remote sensing, low-coherence IR, and visible sources for bio-imaging and others.
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recent advances in fundamentals and applications of random Fiber Lasers
Advances in Optics and Photonics, 2015Co-Authors: Dmitry V. Churkin, Sergey A. Babin, Evgeniy V. Podivilov, Ilya D. Vatnik, Yun-jiang Rao, Srikanth Sugavanam, Zinan Wang, Sergei K. TuritsynAbstract:Random Fiber Lasers blend together attractive features of traditional random Lasers, such as low cost and simplicity of fabrication, with high-performance characteristics of conventional Fiber Lasers, such as good directionality and high efficiency. Low coherence of random Lasers is important for speckle-free imaging applications. The random Fiber laser with distributed feedback proposed in 2010 led to a quickly developing class of light sources that utilize inherent optical Fiber disorder in the form of the Rayleigh scattering and distributed Raman gain. The random Fiber laser is an interesting and practically important example of a photonic device based on exploitation of optical medium disorder. We provide an overview of recent advances in this field, including high-power and high-efficiency generation, spectral and statistical properties of random Fiber Lasers, nonlinear kinetic theory of such systems, and emerging applications in telecommunications and distributed sensing.
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Fiber Lasers - Modeling and Technologies of Ultrafast Fiber Lasers
Fiber Lasers, 2012Co-Authors: Brandon G. Bale, Oleg G. Okhitnikov, Sergei K. TuritsynAbstract:The generation and control of ultrashort optical pulses are rapidly growing areas of photonics with many emerging applications. This is primarily due to the fact that short optical pulses allow the probing of basic physics of light/matter interactions in the sub-picosecond regime, which in turn has opened up a range of new applications fromhigh-bit-rate optical telecommunications tomaterial processing at fundamental frequencies, usually around 1mm, in addition to various biomedical diagnostics at frequency-doubled wavelengths. The requirements for simplicity, maintenance, and reliability, however, have not beenmet by conventional ultrafast technology, formerly based on solid-state Lasers. Over the past decade much attention has been given to Fiber Lasers for the generation of ultrashort pulses, owing to various advantages it has over other solid-state Lasers. Indeed, the recent growth of the telecom industry has resulted in the development of a mature Fiber technology with reliable and costeffective components, which makes suitably designed Fiber Lasers real contenders as alternatives to conventional solid state Lasers. The waveguide geometry of Fiber Lasers not only simplifies many alignment issues, it also distributes heat generated by optical pumping over the length of the Fiber. This is significant for reducing both the thermal management of the laser as well as the risk of damage to the medium itself. To achieve higher energies, Fiber Lasers have the potential for power scalability by implementing cladding pumping technology, which renders them ideal light sources for boosting the energy and brightness, with relative immunity from the thermal problems that have a serious impact on solid-state Lasers via thermal lensing. Another attractive feature of optical Fiber is the broad emission linewidth of a glass host, in contrast to crystalline hosts conventionally employed by bulk solid-state-Lasers. The broad fluorescence spectrum makes different Fiber gain media attractive for wavelength tunable continuous wave (CW) or pulsed sources.Most ultrafast laser systems
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modeling and technologies of ultrafast Fiber Lasers
Fiber Lasers, 2012Co-Authors: Brandon G. Bale, Oleg G. Okhitnikov, Sergei K. TuritsynAbstract:The generation and control of ultrashort optical pulses are rapidly growing areas of photonics with many emerging applications. This is primarily due to the fact that short optical pulses allow the probing of basic physics of light/matter interactions in the sub-picosecond regime, which in turn has opened up a range of new applications fromhigh-bit-rate optical telecommunications tomaterial processing at fundamental frequencies, usually around 1mm, in addition to various biomedical diagnostics at frequency-doubled wavelengths. The requirements for simplicity, maintenance, and reliability, however, have not beenmet by conventional ultrafast technology, formerly based on solid-state Lasers. Over the past decade much attention has been given to Fiber Lasers for the generation of ultrashort pulses, owing to various advantages it has over other solid-state Lasers. Indeed, the recent growth of the telecom industry has resulted in the development of a mature Fiber technology with reliable and costeffective components, which makes suitably designed Fiber Lasers real contenders as alternatives to conventional solid state Lasers. The waveguide geometry of Fiber Lasers not only simplifies many alignment issues, it also distributes heat generated by optical pumping over the length of the Fiber. This is significant for reducing both the thermal management of the laser as well as the risk of damage to the medium itself. To achieve higher energies, Fiber Lasers have the potential for power scalability by implementing cladding pumping technology, which renders them ideal light sources for boosting the energy and brightness, with relative immunity from the thermal problems that have a serious impact on solid-state Lasers via thermal lensing. Another attractive feature of optical Fiber is the broad emission linewidth of a glass host, in contrast to crystalline hosts conventionally employed by bulk solid-state-Lasers. The broad fluorescence spectrum makes different Fiber gain media attractive for wavelength tunable continuous wave (CW) or pulsed sources.Most ultrafast laser systems
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turbulent broadening of optical spectra in ultralong raman Fiber Lasers
Physical Review A, 2008Co-Authors: Sergey A. Babin, Evgeniy V. Podivilov, Juan Diego Aniacastanon, V Karalekas, Vladimir Mezentsev, Paul Harper, Sergei K. TuritsynAbstract:We study the properties of radiation generated in ultralong Fiber Lasers and find an interesting link between these optical systems and the theory of weak wave turbulence. Experimental observations strongly suggest that turbulentlike weak interactions between the multitude of laser cavity modes are responsible for practical characteristics of ultralong Fiber Lasers such as spectra of the output radiation.
J.-c. Bouteiller - One of the best experts on this subject based on the ideXlab platform.
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Raman Fiber Lasers for optical communication application
Annales Des Télécommunications, 2003Co-Authors: J.-c. BouteillerAbstract:Le principe et les caractéristiques des Lasers à effet Raman sont revus dans le contexte de leur application dans les télécommunications. Tout d’abord les éléments constituants les Lasers de Raman sont décrits, c’est-à-dire le pompage, le type de fibre et les réflecteurs. Les équations permettant une modélisation simple du laser sont expliquées, ainsi qu’une façon possible de calculer la largeur spectrale. Ensuite les problèmes se posant fréquemment lors de la conception et l’utilisation de Lasers de Raman sont abordés: optimisation théorique, contrôle de la largeur spectrale, niveau de suppression des ordres de Stokes intermédiaires et fluctuations d’intensité. Enfin, les Lasers émettant plusieurs longueurs d’ondes simultanément sont étudiés. We review the principle and characteristics of cascaded Raman Fiber Lasers in their telecommunication applications. The fundamentals of Raman Fiber Lasers are described, such as pumping scheme, Fiber type and reflectors. We explain simple equations for cw laser operation as well as a possible way to calculate spectral width. We investigate the common issues in the use of Raman Fiber Lasers: theoretical optimization, control of the linewidth, suppression level of the other Stokes orders and relative intensity noise. Finally the more complex multiple-wavelength Raman Fiber Lasers are reviewed.
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Raman Fiber Lasers for optical communication application
Annales Des Télécommunications, 2003Co-Authors: J.-c. BouteillerAbstract:We review the principle and characteristics of cascaded Raman Fiber Lasers in their telecommunication applications. The fundamentals of Raman Fiber Lasers are described, such as pumping scheme, Fiber type and reflectors. We explain simple equations forcw laser operation as well as a possible way to calculate spectral width. We investigate the common issues in the use of Raman Fiber Lasers: theoretical optimization, control of the linewidth, suppression level of the other Stokes orders and relative intensity noise. Finally the more complex multiple-wavelength Raman Fiber Lasers are reviewed.
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Raman Fiber Lasers for optical communication application
Annales Des Télécommunications, 2003Co-Authors: J.-c. BouteillerAbstract:We review the principle and characteristics of cascaded Raman Fiber Lasers in their telecommunication applications. The fundamentals of Raman Fiber Lasers are described, such as pumping scheme, Fiber type and reflectors. We explain simple equations for cw laser operation as well as a possible way to calculate spectral width. We investigate the common issues in the use of Raman Fiber Lasers: theoretical optimization, control of the linewidth, suppression level of the other Stokes orders and relative intensity noise. Finally the more complex multiple-wavelength Raman Fiber Lasers are reviewed. Le principe et les caractéristiques des Lasers à effet Raman sont revus dans le contexte de leur application dans les télécommunications. Tout d’abord les éléments constituants les Lasers de Raman sont décrits, c’est-à-dire le pompage, le type de fibre et les réflecteurs. Les équations permettant une modélisation simple du laser sont expliquées, ainsi qu’une façon possible de calculer la largeur spectrale. Ensuite les problèmes se posant fréquemment lors de la conception et l’utilisation de Lasers de Raman sont abordés: optimisation théorique, contrôle de la largeur spectrale, niveau de suppression des ordres de Stokes intermédiaires et fluctuations d’intensité. Enfin, les Lasers émettant plusieurs longueurs d’ondes simultanément sont étudiés.
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Raman Fiber Lasers as pumps for Raman amplification
Active and Passive Optical Components for WDM Communications II, 2002Co-Authors: C. Headley, J.-c. Bouteiller, Marc D. Mermelstein, Khush Brar, Christopher HornAbstract:This article describes Raman Fiber Lasers and their application as pumps to a Raman amplified optical communication system. Single wavelength, multiwavelength and dual-order devices are described. The advantages of Raman Fiber Lasers compared to semiconductor diodes are also discussed.
Akira Shirakawa - One of the best experts on this subject based on the ideXlab platform.
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Spectrally-filtering photonic bandgap Fiber Lasers
2015 Opto-Electronics and Communications Conference (OECC), 2015Co-Authors: Akira ShirakawaAbstract:Photonic bandgap Fiber Lasers are realizing new laser spectra and nonlinearity mitigation that a conventional Fiber laser cannot by distributed spectral filtering. The recent our works will be reviewed and the future will be discussed.
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Photonic Bandgap Fiber Lasers and Multicore Fiber Lasers for Next Generation High Power Lasers
Advanced Photonics, 2014Co-Authors: Akira Shirakawa, Meishin Chen, Y. Suzuki, K. Sato, Xinyan Fan, Henrik Tünnermann, M. Karow, Christina B. Olausson, Sidsel Rübner Petersen, Thomas Tanggaard AlkeskjoldAbstract:Photonic bandgap Fiber Lasers are realizing new laser spectra and nonlinearity mitigation that a conventional Fiber laser cannot. Multicore Fiber Lasers are a promising tool for power scaling by coherent beam combination.
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Phase-locked Multicore Fiber Lasers
CLEO: 2014, 2014Co-Authors: Akira ShirakawaAbstract:Arraying Fiber Lasers is being focused for power and energy scaling and multicore Fibers can be a promising format. Phase locking in evanescently-coupled multicore Fiber Lasers by various in-phase mode selection methods is presented.
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High power photonic bandgap Fiber Lasers
2011Co-Authors: Akira Shirakawa, Ken-ichi Ueda, Meishin Chen, Christina B. Olausson, Jens K. Lyngsø, Jes BroengAbstract:Rare-earth doped photonic bandgap Fibers enables novel gain profile engineering to realize laser operations at new wavelengths which have never been possible by the conventional Fiber Lasers. Our recent activities will be reviewed.
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All-Solid Photonic Bandgap Fiber Lasers
Advanced Photonics, 2011Co-Authors: Christina B. Olausson, Akira Shirakawa, Jens K. Lyngsø, Jes Broeng, Kim P. Hansen, Ken-ichi UedaAbstract:Solid core photonic bandgap Fibers exhibit a unique spectral filtering effect with efficient out-of-band suppression. This is used for artificial gain shaping and ASE filtering in high power Fiber Lasers for operation at unconventional wavelengths.
Sergey A. Babin - One of the best experts on this subject based on the ideXlab platform.
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Random Distributed Feedback Raman Fiber Lasers
Raman Fiber Lasers, 2017Co-Authors: Sergey A. Babin, Sergey I. Kablukov, Ekaterina A. Zlobina, Evgeniy V. Podivilov, S. R. Abdullina, Ivan A. Lobach, A. G. Kuznetsov, Ilya D. Vatnik, Dmitry V. Churkin, Sergei K. TuritsynAbstract:In this chapter we briefly review the basic principles of Raman Fiber Lasers operating via random distributed feedback, including details of feedback mechanism, various cavity designs, and corresponding power and spectral characteristics, as well as their statistical properties. We also compare performances of the random Raman Fiber Lasers (RRFLs) with that for conventional Raman Fiber Lasers (RFLs) with linear cavity based on two reflectors. The performance analysis includes polarization management, optimization of conversion efficiency, cascaded generation of higher Stokes orders, opportunities for short-wavelength generation via direct pumping by high-power laser diodes, or frequency doubling of random Raman Fiber laser radiation. Pulsed operation of random Raman Fiber Lasers via active or passive Q-switching is also analyzed. The analysis shows that the output characteristics of Raman Fiber Lasers with random distributed feedback reached to the moment already outperform in many aspects those for conventional Raman Fiber Lasers. The unique performance of random Fiber Lasers opens the door to their application in advanced technologies, such as long-distance amplifier-free transmission and remote sensing, low-coherence IR, and visible sources for bio-imaging and others.
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recent advances in fundamentals and applications of random Fiber Lasers
Advances in Optics and Photonics, 2015Co-Authors: Dmitry V. Churkin, Sergey A. Babin, Evgeniy V. Podivilov, Ilya D. Vatnik, Yun-jiang Rao, Srikanth Sugavanam, Zinan Wang, Sergei K. TuritsynAbstract:Random Fiber Lasers blend together attractive features of traditional random Lasers, such as low cost and simplicity of fabrication, with high-performance characteristics of conventional Fiber Lasers, such as good directionality and high efficiency. Low coherence of random Lasers is important for speckle-free imaging applications. The random Fiber laser with distributed feedback proposed in 2010 led to a quickly developing class of light sources that utilize inherent optical Fiber disorder in the form of the Rayleigh scattering and distributed Raman gain. The random Fiber laser is an interesting and practically important example of a photonic device based on exploitation of optical medium disorder. We provide an overview of recent advances in this field, including high-power and high-efficiency generation, spectral and statistical properties of random Fiber Lasers, nonlinear kinetic theory of such systems, and emerging applications in telecommunications and distributed sensing.
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turbulent broadening of optical spectra in ultralong raman Fiber Lasers
Physical Review A, 2008Co-Authors: Sergey A. Babin, Evgeniy V. Podivilov, Juan Diego Aniacastanon, V Karalekas, Vladimir Mezentsev, Paul Harper, Sergei K. TuritsynAbstract:We study the properties of radiation generated in ultralong Fiber Lasers and find an interesting link between these optical systems and the theory of weak wave turbulence. Experimental observations strongly suggest that turbulentlike weak interactions between the multitude of laser cavity modes are responsible for practical characteristics of ultralong Fiber Lasers such as spectra of the output radiation.
Evgeniy V. Podivilov - One of the best experts on this subject based on the ideXlab platform.
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Random Distributed Feedback Raman Fiber Lasers
Raman Fiber Lasers, 2017Co-Authors: Sergey A. Babin, Sergey I. Kablukov, Ekaterina A. Zlobina, Evgeniy V. Podivilov, S. R. Abdullina, Ivan A. Lobach, A. G. Kuznetsov, Ilya D. Vatnik, Dmitry V. Churkin, Sergei K. TuritsynAbstract:In this chapter we briefly review the basic principles of Raman Fiber Lasers operating via random distributed feedback, including details of feedback mechanism, various cavity designs, and corresponding power and spectral characteristics, as well as their statistical properties. We also compare performances of the random Raman Fiber Lasers (RRFLs) with that for conventional Raman Fiber Lasers (RFLs) with linear cavity based on two reflectors. The performance analysis includes polarization management, optimization of conversion efficiency, cascaded generation of higher Stokes orders, opportunities for short-wavelength generation via direct pumping by high-power laser diodes, or frequency doubling of random Raman Fiber laser radiation. Pulsed operation of random Raman Fiber Lasers via active or passive Q-switching is also analyzed. The analysis shows that the output characteristics of Raman Fiber Lasers with random distributed feedback reached to the moment already outperform in many aspects those for conventional Raman Fiber Lasers. The unique performance of random Fiber Lasers opens the door to their application in advanced technologies, such as long-distance amplifier-free transmission and remote sensing, low-coherence IR, and visible sources for bio-imaging and others.
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recent advances in fundamentals and applications of random Fiber Lasers
Advances in Optics and Photonics, 2015Co-Authors: Dmitry V. Churkin, Sergey A. Babin, Evgeniy V. Podivilov, Ilya D. Vatnik, Yun-jiang Rao, Srikanth Sugavanam, Zinan Wang, Sergei K. TuritsynAbstract:Random Fiber Lasers blend together attractive features of traditional random Lasers, such as low cost and simplicity of fabrication, with high-performance characteristics of conventional Fiber Lasers, such as good directionality and high efficiency. Low coherence of random Lasers is important for speckle-free imaging applications. The random Fiber laser with distributed feedback proposed in 2010 led to a quickly developing class of light sources that utilize inherent optical Fiber disorder in the form of the Rayleigh scattering and distributed Raman gain. The random Fiber laser is an interesting and practically important example of a photonic device based on exploitation of optical medium disorder. We provide an overview of recent advances in this field, including high-power and high-efficiency generation, spectral and statistical properties of random Fiber Lasers, nonlinear kinetic theory of such systems, and emerging applications in telecommunications and distributed sensing.
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turbulent broadening of optical spectra in ultralong raman Fiber Lasers
Physical Review A, 2008Co-Authors: Sergey A. Babin, Evgeniy V. Podivilov, Juan Diego Aniacastanon, V Karalekas, Vladimir Mezentsev, Paul Harper, Sergei K. TuritsynAbstract:We study the properties of radiation generated in ultralong Fiber Lasers and find an interesting link between these optical systems and the theory of weak wave turbulence. Experimental observations strongly suggest that turbulentlike weak interactions between the multitude of laser cavity modes are responsible for practical characteristics of ultralong Fiber Lasers such as spectra of the output radiation.
