Journal ArticleDOI
Nearly single-mode Raman lasing at 954 nm in a graded-index fiber directly pumped by a multimode laser diode.
TLDR
High beam quality and narrow spectrum have been obtained in a Raman fiber laser based on a 1.1 km long graded-index fiber directly pumped by a multimode 915 nm laser diode.Abstract:
High beam quality and narrow spectrum have been obtained in a Raman fiber laser based on a 1.1 km long graded-index fiber directly pumped by a multimode 915 nm laser diode. The generation of a near-diffraction-limited beam at 954 nm with M2≤1.27 and Δλ=0.42 nm at an output power above 10 W is enabled by a cavity mirror made of a special fiber Bragg grating inscribed by a femtosecond technique in the central part of the graded-index fiber core.read more
Citations
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Journal ArticleDOI
Multimode nonlinear fiber optics, a spatiotemporal avenue
Katarzyna Krupa,Alessandro Tonello,Alain Barthélémy,Tigran Mansuryan,Vincent Couderc,Guy Millot,Philippe Grelu,Daniele Modotto,Sergey A. Babin,Stefan Wabnitz,Stefan Wabnitz +10 more
TL;DR: In this article, a perspective overview of the emerging field of nonlinear optics in multimode optical fibers is provided for the ultrafast light-activated control of temporal, spatial, and spectral degrees of freedom of intense, pulsed beams of light for a range of different technological applications.
Journal ArticleDOI
Kerr self-cleaning of pulsed beam in an ytterbium doped multimode fiber.
R. Guenard,Katarzyna Krupa,R. Dupiol,Marc Fabert,Abdelkrim Bendahmane,Vincent Kermène,Agnès Desfarges-Berthelemot,Jean-Louis Auguste,Alessandro Tonello,Alain Barthélémy,Guy Millot,Stefan Wabnitz,Vincent Couderc +12 more
TL;DR: It is experimentally demonstrate that Kerr spatial self-cleaning of a pulsed beam can be obtained in an amplifying multimode optical fiber and compares the self- Cleaning behavior observed in the same fiber with loss and with gain.
Journal ArticleDOI
Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber
R. Guenard,Katarzyna Krupa,R. Dupiol,Marc Fabert,Abdelkrim Bendahmane,Vincent Kermène,Agnès Desfarges-Berthelemot,Jean-Louis Auguste,Alessandro Tonello,Alain Barthélémy,Guy Millot,Stefan Wabnitz,Vincent Couderc +12 more
TL;DR: A coupled cavity laser configuration where a passively Q-switched Nd:YAG microchip laser is combined with an extended cavity, including a doped multimode fiber is studied, finding that beam self-cleaning was induced in the multimode Fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output.
Journal ArticleDOI
Generating high-quality beam in a multimode LD-pumped all-fiber Raman laser
Ekaterina A. Zlobina,Sergey I. Kablukov,Alexey A. Wolf,Ilya N. Nemov,Alexander V. Dostovalov,V. A. Tyrtyshnyy,D. V. Myasnikov,Sergey A. Babin +7 more
TL;DR: The proposed development and integration of key multimode fiber technologies opens the door to new type of LD-pumped high-power high-beam-quality fiber lasers that may operate at almost any wavelength defined by available LDs.
Journal ArticleDOI
Generation of Raman dissipative solitons near 1.3 microns in a phosphosilicate-fiber cavity.
TL;DR: An external-cavity generation of powerful ultrashort pulses in an all-fiber scheme by using a new type of phosphosilicate polarization maintaining fiber is investigated and the phosphorus-related Stokes shifted Raman pulse near 1.3 microns is observed.
References
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Journal ArticleDOI
High power fiber lasers: current status and future perspectives [Invited]
TL;DR: This paper reviews the current state of the art in terms of continuous-wave and pulsed performance of ytterbium-doped fiber lasers, the current fiber gain medium of choice, and by far the most developed in Terms of high-power performance.
Journal ArticleDOI
Four-wave-mixing-induced turbulent spectral broadening in a long Raman fiber laser
TL;DR: In this article, the authors present a self-consistent theory based on wave kinetic equations that describes the generation spectrum and output power of a Raman fiber laser (RFL), and show that the quasi-degenerate four-wave mixing between different longitudinal modes is the main broadening mechanism in the one-stage RFL at high powers.
Journal ArticleDOI
Pulse Propagation in a Short Nonlinear Graded-Index Multimode Optical Fiber
TL;DR: In this paper, a detailed analysis of the modal properties, dispersive behavior, and nonlinear mode coupling in graded-index multimode fibers (GIMFs), and a simplified form of a generalized nonlinear Schrodinger equation, which can be used to explore the rich nonlinear dynamics related to the propagation and interaction of light pulses in GIMFs, is presented.
Journal ArticleDOI
Implications of higher-order mode content in large mode area fibers with good beam quality.
TL;DR: It is shown that even excellent beam quality in LMA fibers does not guarantee low HOM content, and that the presence of HOMs can lead to significant uncontrollable changes in beam quality, peak intensity, and pointing uncertainty that depend on the uncontrollable relative phase of the modes in the fiber.
Journal ArticleDOI
Medium-power CW Raman fiber lasers
Evgeny M. Dianov,A.M. Prokhorov +1 more
TL;DR: A review of recent results on medium-power CW Raman fiber lasers pumped by laser diodes is presented in this article, where most attention is given to Raman lasers based on phosphosilicate fibers.