Self-induced laser line sweeping in an ytterbium fiber laser with non-resonant Fabry-Perot cavity

Kir’yanov, Alexander V.; Il'ichev, Nikolai N

doi:10.1002/lapl.201010138

Cited by 55 publications

(46 citation statements)

References 46 publications

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“…Other important reports about the SLLS were published shortly after [8] by Lobach et al [10,11]. They proposed a qualitative theoretical model of the SLLS and their theoretical findings correspond well to the experiments reported in the paper.…”

Section: Introductionsupporting

confidence: 73%

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Self-induced laser line sweeping in double-clad Yb-doped fiber-ring lasers

et al. 2012

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International audienceExperimental observation of the self-induced laser line sweeping (SLLS) in fiber ring lasers is presented. The SLLS with the same gain fiber is studied in Fabry-Perot cavity for comparison. The SLLS effect manifests itself as a laser wavelength drift with speed of the order of nanometer per second from shorter to longer wavelengths across several nanometers and fast backward jump. Recently, the dynamics of the SLLS in a Fabry-Perot cavity fiber laser was qualitatively described by a dynamic grating induced by spatial-hole-burning in the ytterbium doped fiber where the lifetime of the grating was related to the self-sustained relaxation oscillations. In this paper we address possible discrepancies between the published theoretical model and earlier observations of SLLS, particularly in fiber-ring lasers.We show that the qualitative theoretical model developed for explaining SLLS in the Fabry-Perot cavity can be used also to explain the SLLS effect we observed earlier in fiber-ring lasers

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Section: Introductionsupporting

confidence: 73%

“…The gain fiber was always an ytterbiumdoped double clad fiber. The Fabry-Perot setup in [8] differs from the one in Fig. 2a in that the GT-Wave ytterbium doped fiber bundle was used thus eliminating the need of the pump and signal combiner.…”

Section: Laser Setups and The Slls Theorymentioning

confidence: 99%

Self-induced laser line sweeping in double-clad Yb-doped fiber-ring lasers

et al. 2012

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“…For the temperature of 40°C, we have observed even the sweeping of the laser wavelength from longer towards shorter wavelength. It is unlike any of the previous observations [7][8][9] and [11] where only the sweeping from shorter towards longer wavelength was reported. Therefore, we refer to this process as to Time, s Reverse SLLS.…”

Section: Spectra Measurement By the Ccd-type Spectrometer And The Revcontrasting

confidence: 79%

“…Origin of the SLLS in this fiber-ring laser was explained in [7]. The SLLS effect in Fabry-Perot fiber laser cavities was independently reported by two groups [8] and [9].…”

Section: Introductionmentioning

confidence: 86%

Self-induced laser line sweeping and self-pulsing in double-clad fiber lasers in Fabry-Perot and unidirectional ring cavities

et al. 2012

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8 pagesInternational audienceRare-earth doped fiber lasers are subject to instabilities and various self-pulsed regimes that can lead to catastrophic damage of their components. An interesting self-pulsing regime accompanied with laser wavelength drift with time is the so called self-induced laser line sweeping (SLLS). Despite the early observations of the SLLS in solid-state ruby lasers, in fiber lasers it was first time mentioned in literature only in 2009 where such a laser wavelength drift with time was observed in a relatively broad range of about 1076 -1084 nm in ring ytterbium-doped fiber laser (YDFL). The main characteristic of the SLLS is the scanning of the laser wavelength from shorter to longer wavelength, spanning over large interval of several nanometers, and instantaneous bounce backward. The period of this sweeping is usually quite long, of the order of seconds. This spectacular effect was attributed to spatial-hole burning caused by standing-wave in the laser cavity. In this paper we present experimental investigation of the SLLS in YDFLs in Fabry-Perot cavity and ring cavities. The SLLS was observed also in erbium-doped fiber laser around 1560 nm. We present for the first time observation of the laser wavelength sweep in reverse direction, i.e., from longer towards shorter wavelengths. It was observed in YDFL around 1080 nm

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“…Below, we present a detailed experimental analysis of the dynamics of an actively QS (AQS) fiber laser built using an Yb-doped GTWave ("twin" or "dual") fiber [20][21][22][23]. Our aim was to make, on its example, a deeper insight into the details inherent in QS fiber lasers for getting a more complete picture of their nonlinear dynamics.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Nonlinear Dynamics of an Actively Q-Switched Ytterbium-Doped Fiber Laser

Barmenkov

Kir’yanov

Andrés

2012

IEEE J. Quantum Electron.

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In this paper, a comprehensive experimental study of the dynamics of an actively Q-switched Yb-doped GTWave based fiber laser is presented. It is shown that the appearance of the Q-switching regime in the laser is sensitive to both the repetition rate and the temporal width of the transparency window of an acousto-optical Q-switch modulator placed in the cavity. It is also shown that, at low repetition rates, a peculiar self-Q-switch regime induced by stimulated Brillouin scattering is observed in the laser, which interferes stochastically with the regular (true) active Q-switching mode. At increasing the Qmodulator repetition rate, the self-Q-switch pulsing steadily vanishes while the true Q-switching remains. This latter however becomes strongly affected, at further increasing the Q-switch repetition rate, by the own nonlinear laser dynamics. That is, the laser is allowed to operate at certain sub-harmonics of the repetition rate or in some specific regimes that occur at the laser transients from one attractor to another. These transient regimes are characterized by alternating by pulse amplitude / energy and pulse spacing or by chaos, which strongly influenced by the adjacent attractors' properties. , as a Research Fellow, and the University of Joensuu, Finland, as a visiting scientist. He has authored or coauthored over 130 scientific papers and held three patents. His main research activity includes single-frequency, CW and Q-switched fiber lasers, fiber optic sensors, and nonlinear optics of optical fibers.

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Self-induced laser line sweeping in an ytterbium fiber laser with non-resonant Fabry-Perot cavity

Abstract: Dependences of spectral positions of laser line λg on the left (blue) and right (red) bounds of the SLLS regime

Cited by 55 publications

References 46 publications

Self-induced laser line sweeping in double-clad Yb-doped fiber-ring lasers

Self-induced laser line sweeping in double-clad Yb-doped fiber-ring lasers

Self-induced laser line sweeping and self-pulsing in double-clad fiber lasers in Fabry-Perot and unidirectional ring cavities

Experimental Study of the Nonlinear Dynamics of an Actively Q-Switched Ytterbium-Doped Fiber Laser

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