Generation dynamics of the narrowband Yb-doped fiber laser

Bednyakova, Anastasia; Gorbunov, O.A.; Politko, Maxim; Kablukov, S. I.; Smirnov, S. V.; Churkin, Dmitry V.; Федорук, М. П.; Бабин, С. А.

doi:10.1364/oe.21.008177

Cited by 54 publications

(38 citation statements)

References 28 publications

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“…In general, temporal dynamics and statistical properties of quasi-CW fibre lasers are of great interest in recent years. There are experimental indications that intensity statistics in quasi-CW fibre lasers could be non-gaussian revealing increased probability of extreme events in RFLs 16,20 as well as non-Gaussian statistics in YDFL 21 . Moreover, recently it has been demonstrated that dark and grey solitons do really exist in the radiation of quasi-CW RFL operating in normal dispersion regime 22 .…”

Section: Experiments and Discussionmentioning

confidence: 99%

Nonlinear mixing and mode correlations in a short Raman fiber laser

2014

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In the present paper we experimentally demonstrate a generation in a short Raman fiber laser having 10 000 different longitudinal modes only. We design the laser using 12 meters of commercially available fiber. Contrary to the recently demonstrated single longitudinal mode DFB Raman laser and short DBR Raman laser, in the laser under study the number of modes is high enough for efficient nonlinear interactions. Experimentally measured time dynamics reveals the presence of mode correlations in the radiation: the measured extreme events lasts for more than 10 round-trips.

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Section: Experiments and Discussionmentioning

confidence: 99%

Nonlinear mixing and mode correlations in a short Raman fiber laser

2014

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“…In a convenient experiment 13,19 laser radiation is registered by a photodetector and then transmitted to an oscilloscope. Since the photodetector has its limited input power range, high intensity peaks may be transmitted in a nonlinear way, but this impact can be omitted by a proper choice of used power range.…”

Section: Discussion Of Possible Instrumental Impactmentioning

confidence: 99%

“…As a result, the time dynamics of the RFL is complex with non-trivial statistical properties [8][9][10][11] . Other types of fiber lasers, for example, Ytterbium-doped fiber lasers, also reveal quasi-CW properties of the output radiation with non-gaussian statistics 12,13 . Possible mode correlations are reported recently in both YDFLs and short RFLs 14 .…”

Section: Introductionmentioning

confidence: 99%

Influence of the generated power, measurement bandwidth, and noise level on intensity statistics of a quasi-CW Raman fiber laser

2014

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In the present paper we numerically study instrumental impact on statistical properties of quasi-CW Raman fiber laser using a simple model of multimode laser radiation. Effects, that have the most influence, are limited electrical bandwidth of measurement equipment and noise. To check this influence, we developed a simple model of the multimode quasi-CW generation with exponential statistics (i.e. uncorrelated modes). We found that the area near zero intensity in probability density function (PDF) is strongly affected by both factors, for example both lead to formation of a negative wing of intensity distribution. But far wing slope of PDF is not affected by noise and, for moderate mismatch between optical and electrical bandwidth, is only slightly affected by bandwidth limitation. The generation spectrum often becomes broader at higher power in experiments, so the spectral/electrical bandwidth mismatch factor increases over the power that can lead to artificial dependence of the PDF slope over the power. It was also found that both effects influence the ACF background level: noise impact decreases it, while limited bandwidth leads to its increase.

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“…Nonlinear interaction of numerous modes lead to complicated temporal dynamics, for which statistical description is only possible. Non-trivial properties of radiation dynamics in fiber lasers with fiber Bragg gratings was observed in numerical simulations [2] and a number of experiments in different fiber laser types [3,4]. It was shown, that probability density function (PDF) has non-exponential shape, what indicates presence of spectral correlations.…”

Section: Introductionmentioning

confidence: 97%

Revealing spectral cross-correlations in radiation of multiwavelength fiber laser with randomly distributed feedback

Vatnik

Gorbunov

Sugavanam

et al. 2018

Fiber Lasers and Glass Photonics: Materials Through Applications

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In present paper correlations between different parts of spectrum of a fiber laser with randomly distributed feedback (RDFL) were experimentally measured directly. Implemented statistical analysis demonstrate weak cross-correlations between different lines in generation spectrum. These correlations were vizualized by plotting 2-D probability density functions. Linear correlation coefficient (Pearson coefficient) was calculated for each pair of spectrum lines.

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Generation dynamics of the narrowband Yb-doped fiber laser

Cited by 54 publications

References 28 publications

Nonlinear mixing and mode correlations in a short Raman fiber laser

Nonlinear mixing and mode correlations in a short Raman fiber laser

Influence of the generated power, measurement bandwidth, and noise level on intensity statistics of a quasi-CW Raman fiber laser

Revealing spectral cross-correlations in radiation of multiwavelength fiber laser with randomly distributed feedback

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