Photon statistics of actively Q-switched erbium-doped fiber laser

Minguela-Gallardo, Josue A.; Barmenkov, Yuri O.; Kir’yanov, Alexander V.; Beltrán-Pérez, G.

doi:10.1364/josab.34.001407

Cited by 13 publications

(12 citation statements)

References 24 publications

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“…Third, we reveal that, for output powers varying in a broad range, the laser does not operate neither in true CW nor quasi-CW mode but instead oscillates noise pulses and that this emission can be suitably described by probability distribution function (PDF), congruent to that used for narrowband amplified ASE 32 . Note that such type of noise pulsing was recently reported for an actively Q-switched Erbium-doped fiber laser and conversion of its output for supercontinuum (SC) generation 33,34 . Since CW or gain-switched CW YDFLs with Fabry-Perot cavity are now-a-days used for SC generation, too 35–38 , the knowledge about noise features of such lasers becomes crucial.…”

Section: Introductionmentioning

confidence: 83%

“…These light sources are adopted for fully fiberized optical schemes with no any free-space components and demonstrate very high optical and electrical to optical conversion efficiency. FLs operate in a variety of regimes, characterized by narrow (from a tens Hz) 1 to a very large optical band 2 , in continuous-wave (CW) 3 and pulsed regimes including Q-switched, mode-locking and soliton operations where pulse width is ranged from hundreds of nanoseconds down to tens of femtoseconds 4–7 . Furthermore, modern optical materials e.g.…”

Section: Introductionmentioning

confidence: 99%

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Ytterbium-doped fiber laser as pulsed source of narrowband amplified spontaneous emission

Muniz-Cánovas

Barmenkov

Kir’yanov

et al. 2019

Sci Rep

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We report random noise pulsed regime of an ytterbium-doped fiber laser arranged in common Fabry-Perot configuration. We show that the laser output obeys the photon statistics inherent to narrowband amplified spontaneous emission and that the noise pulsing is properly addressed in terms of probability density and autocorrelation functions. Our novel approach reveals, in particular, that the regime’s coherence time dramatically shortens, from few ns to tens ps, with increasing laser power.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Ytterbium-doped fiber laser as pulsed source of narrowband amplified spontaneous emission

Muniz-Cánovas

Barmenkov

Kir’yanov

et al. 2019

Sci Rep

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“…Note that in this type of lasers Q-switched pulse consists of a train of subpulses, with the number of developed sub-pulses and their powers depending on the EDF initial charge (viz. the multiplication of the density of excited Er 3+ ions in the core with the laser level energy) and cavity loss [14][15][16]. Here, the width of the output 1 cm FBG was 80 pm.…”

Section: Photon Noise In Aqs Edflmentioning

confidence: 99%

Noise fiber lasers

Barmenkov

Muniz-Cánovas²,

Kir’yanov

et al. 2021

Supl. Rev. Mex. Fis.

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In this paper, we present a brief review of the noise operation mode of fiber lasers. These lasers were studied recently by collaborative group that includes researchers, professors, and Ph.D. students from the Centro de Investigaciones en Optica, A.C. (Leon, Guanajuato, Mexico) and from the Universidad de Valencia (Valencia, Spain). Meanwhile, the pioneer works in this topic important for understanding the physics behind fiber lasers’ operation and for practical applications were done with the active participation of Dr. Evgeny Kuzin from the Instituto Nacional de Astrofisica, Optica y Electronica (Puebla, Mexico) and Dr. Georgina Beltrán-Pérez from the Benemérita Universidad Autónoma de Puebla (Puebla, Mexico), whose Ph.D. study was supervised by him. The fiber lasers under study were based on commercial erbium- and ytterbium-doped fibers as gain media and operated in continuous-wave and actively Q-switched regimes. All these fiber lasers were arranged in Fabry-Perot cavity configuration with fiber Bragg gratings as narrow-band reflectors. In the case of actively Q-switched lasers a standard fiberized acousto-optic modulator was placed close to the rear (100%) reflector. The most important conclusion of all the works grounding the present review is that, independently on laser operation regime, continuous wave or actively Q-switched, these fiber lasers operate in the extremely noise regime with the photon statistics described by Bose-Einstein distribution inherent to narrow-band thermal light sources.

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“…ASE sources in the continuous regime 5 , 9 – 14 are very interesting examples of such stochastic light. They have been successfully used in many applications 15 – 20 including low-coherence interferometry, sensing, imaging, speckle free imaging, low-coherence tomography, entanglement of photons pairs 21 and enhanced non-linear optical generation 12 , 22 , 23 .…”

Section: Introductionmentioning

confidence: 99%

High-power amplified spontaneous emission pulses with tunable coherence for efficient non-linear processes

Valero

Marion

Lhermite

et al. 2021

Sci Rep

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We report on a detailed study of an amplified spontaneous emission source operated in a pulsed regime with particular attention paid to the influence of high-intensity chaotic temporal events on the generation of nonlinear processes. To this aim, we have developed a monolithic high-power fiber system delivering partially coherent pulses of adjustable coherence. We also have demonstrated a non-linear method to characterize the stochastic properties of the source mitigating the bandwidth limitation of linear techniques. Measured parameters of the source for various configurations are presented. An enhanced classical model has been established to reproduce the statistical properties of the source and predict the behaviour when exciting non-linear processes. Finally, a non-linear process (second harmonic generation) is investigated comparing the efficiency when the process is pumped by a pulsed beam with maximal and low coherence.

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Photon statistics of actively Q-switched erbium-doped fiber laser

Cited by 13 publications

References 24 publications

Ytterbium-doped fiber laser as pulsed source of narrowband amplified spontaneous emission

Ytterbium-doped fiber laser as pulsed source of narrowband amplified spontaneous emission

Noise fiber lasers

High-power amplified spontaneous emission pulses with tunable coherence for efficient non-linear processes

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