Lévy spectral intensity statistics in a Raman random fiber laser

Li, Jiaqi; Wu, Han; Lin, Shengtao; Lu, Chongyu; Raposo, Ernesto P.; Gomes, Anderson S. L.; Rao, Yunjiang

doi:10.1364/ol.44.002799

Cited by 33 publications

(9 citation statements)

References 28 publications

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“…This ADC sampled the signal at 256 GSa/s, and statistical analysis was performed on the resulting time-domain signal. Indeed, as demonstrated by Raposo et al 19 , and later experimentally confirmed for random Raman lasers by Li et al 20 , a random laser’s output power is characterized by a Lévy-like distribution, an asymmetrical distribution with a heavy tail towards the higher powers. The α -stable Lévy probability density function (PDF) is most importantly characterized by the Lévy index α , where α = 2 corresponds to a Gaussian distribution, and 0 < α < 2 corresponds to a Lévy-like distribution.…”

Section: Random Raman Fiber Laser Emissionmentioning

confidence: 83%

A simple high-speed random number generator with minimal post-processing using a random Raman fiber laser

Monet

Boisvert

Kashyap

2021

Sci Rep

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A simple novel method for random number generation is presented, based on a random Raman fiber laser. This laser is built in a half-open cavity scheme, closed on one side by a narrow-linewidth 100 mm fiber Bragg grating. The interaction between the randomly excited lasing modes of this laser, in addition to nonlinear effects such as modulation instability, allow the generation of random bits at rates of up to 540 Gbps with minimal post processing. Evaluation of the resulting bit streams’ randomness by the NIST statistical test suite highlights the importance of evaluating the physical entropy content, as bit sequences generated by this random laser pass all the statistical tests with a significance level of 0.01, despite being generated at more than twice the theoretical entropy generation speed.

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Section: Random Raman Fiber Laser Emissionmentioning

confidence: 83%

A simple high-speed random number generator with minimal post-processing using a random Raman fiber laser

Monet

Boisvert

Kashyap

2021

Sci Rep

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“…In the last two decades, several papers [17][18][19][20][21][22][23][24][25][26][27][28][29]36,37,[41][42][43][44][45][46][47] have established the presence of Lévy-type fluctuations near the threshold as a hallmark of RL systems. The mechanism underlying this behavior stems from the presence of optical noise and disorder [19,20,36,37].…”

Section: Stochastic Model and Effective Third-order Susceptibility Co...mentioning

confidence: 99%

Influence of fifth-order nonlinearities on the statistical fluctuations in emission intensities in a photonic open-cavity complex system

et al. 2020

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“…In the spectral domain, a scanning Fabry-Perot interferometer was used to realize the real-time spectrum measurement of RRFL, and narrow spectral components with temporally varying intensity were revealed for the first time [15] , to the best of our knowledge. The Lévy spectral intensity statistics was further presented in RRFL [16] , and the statistical evolution with the pump power was found similar to the case of higher-dimensional random lasers [17] and random grating-based random fiber lasers [18] . In the temporal domain, Gorbunov and collaborators for the first time, to the best of our knowledge, experimentally investigated the temporal intensity dynamics of RRFL and discovered strong intensity fluctuations on a short time scale [19] .…”

Section: Introductionmentioning

confidence: 70%

Statistical properties of Er/Yb co-doped random Rayleigh feedback fiber laser

Han

Wang

et al. 2021

Chin. Opt. Lett.

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In this Letter, we experimentally investigate fast temporal intensity dynamics and statistical properties of the claddingpumped Er/Yb co-doped random Rayleigh feedback fiber laser (EYRFL) for the first time, to the best of our knowledge. By using the optical spectral filtering method, strong and fast intensity fluctuations with the generation of extreme events are revealed at the output of EYRFL. The statistics of the intensity fluctuations strongly depends on the wavelength of the filtered radiation, and the intensity probability density function (PDF) with a heavy tail is observed in the far wings of the spectrum. We also find that the PDF of the intensity in the central part of the spectrum deviates from the exponential distribution and has the dependence on the laser operating regimes, which indicates some correlations among different frequency components exist in the EYRFL radiation and may play an important role in the random lasing spectrum stabilization process.

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Lévy spectral intensity statistics in a Raman random fiber laser

Cited by 33 publications

References 28 publications

A simple high-speed random number generator with minimal post-processing using a random Raman fiber laser

A simple high-speed random number generator with minimal post-processing using a random Raman fiber laser

Influence of fifth-order nonlinearities on the statistical fluctuations in emission intensities in a photonic open-cavity complex system

Statistical properties of Er/Yb co-doped random Rayleigh feedback fiber laser

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