Modeling of the spectrum in a random distributed feedback fiber laser within the power balance modes

Vatnik, Ilya D.; Churkin, Dmitry V.

doi:10.1117/12.2052328

Cited by 7 publications

(7 citation statements)

References 47 publications

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“…(1) can be further used in Eq. (2b) to find the generation spectrum shape, Iω [135]. This can be done under the assumption that the total generation power is small, and that the redistribution of the generated power over the spectrum [from single The results of spectral modeling for different pump powers for a single-arm laser operating at 1550 nm are shown in Fig.…”

Section: 1a Numerical Simulation Of Spectral Narrowing Within the mentioning

confidence: 99%

“…(2), the simpler approach can be implemented because generation intensities at different frequencies are coupled to the same pump wave and can be found if the pump wave longitudinal distribution Pz is known [135]. To find the pump power distribution, one can use the spectrally independent power balance model [Eqs.…”

Section: 1a Numerical Simulation Of Spectral Narrowing Within the mentioning

confidence: 99%

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Recent advances in fundamentals and applications of random fiber lasers

et al. 2015

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Doc. ID 239686)Random fiber lasers blend together attractive features of traditional random lasers, such as low cost and simplicity of fabrication, with high-performance characteristics of conventional fiber lasers, such as good directionality and high efficiency. Low coherence of random lasers is important for speckle-free imaging applications. The random fiber laser with distributed feedback proposed in 2010 led to a quickly developing class of light sources that utilize inherent optical fiber disorder in the form of the Rayleigh scattering and distributed Raman gain. The random fiber laser is an interesting and practically important example of a photonic device based on exploitation of optical medium disorder. We provide an overview of recent advances in this field, including high-power and high-efficiency generation, spectral and statistical properties of random fiber lasers, nonlinear kinetic theory of such systems, and emerging applications in telecommunications and distributed sensing.

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Section: 1a Numerical Simulation Of Spectral Narrowing Within the mentioning

confidence: 99%

Section: 1a Numerical Simulation Of Spectral Narrowing Within the mentioning

confidence: 99%

Recent advances in fundamentals and applications of random fiber lasers

et al. 2015

Self Cite

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“…To further reduce the amount of computation, some approximations are used. First, the Rayleigh scattering wave P − p is thousands of times lower than the forward pump power P + p in conventional fibers, so its effect on the forward pump power and Stokes powers can be ignored [17,23,24]. Moreover, the power generated by the Rayleigh scattering reflection is also much smaller than that of the point-mirror reflection.…”

Section: Modification Of the Conventional Power-balance Modelmentioning

confidence: 99%

“…Using the present model, the power distribution of P + p (x) can be directly calculated by Eq. (17). Although calculating the P − s (x) involves numerical integration through Eq.…”

Section: Solution For the Ultrafast Convergent Power-balance Modelmentioning

confidence: 99%

“…The power-balance model can be used to characterize the power features including lasing threshold, slope efficiency, power distribution [4,11], and high-order emission profiles [16]. The modified power-balance model [17] described the spectral properties, and the nonlinear Schrödinger equation based model [18] can further study the spectral and temporal intensity dynamics of RRFL. Besides, wave kinetic theory [19] can be also used to study the spectral and power properties of RRFL.…”

Section: Introductionmentioning

confidence: 99%

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Ultrafast convergent power-balance model for Raman random fiber laser with half-open cavity

Lin¹,

Wang²,

Araújo³

et al. 2020

Opt. Express

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The power-relevant features of Raman random fiber laser (RRFL), such as lasing threshold, slope efficiency, and power distribution, are among the most critical parameters to characterize its operation status. In this work, focusing on the power features of the half-open cavity RRFL, an ultrafast convergent power-balance model is proposed, which highlights the physical essence of the most common RRFL type and sharply reduces the computation workload. By transforming the time-consuming serial calculation to a parallel one, the calculation efficiency can be improved by more than 100 times. Particularly, for different point-mirror reflectivities and different fiber lengths, the input-output power curves and power distribution curves calculated by the present model match nicely with those of the conventional model, as well as with the experimental data. Moreover, through the present model the relationship between point-mirror reflectivity and laser threshold is analytically derived, and the way for improving RRFL's slope efficiency is also provided with a lucid theoretical explanation.

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Spectral Manipulations of Random Fiber Lasers: Principles, Characteristics, and Applications

Han,

Cheng,

Tao

et al. 2024

Laser & Photonics Reviews

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Random fiber lasers (RFLs), a new variety of random lasers, have become a vigorous research spot over the past decades. RFLs possess superiorities in efficiency, structural flexibility, directionality, cost, etc. Particularly, RFLs are discovered to be good platforms for the construction of various forms of high‐performance lasers. Herein, recent progress in the spectral manipulation of RFLs and the applications of spectral‐tailored RFLs are reviewed. Both theoretical and experimental investigations of the unique spectral properties of RFLs up to now are presented. The superior wavelength flexibility of RFLs which can achieve any desired lasing wavelength in the 1–2.1 µm band is highlighted. Via spectral manipulation, RFLs have shown the capability of high‐spectral‐purity, narrow‐bandwidth, and multi‐wavelength output. Furthermore, the RFLs featuring unique spectral properties can lead to various promising applications, which are concisely summarized, including optical fiber communication, optical fiber sensing, imaging, supercontinuum generation, nonlinear‐frequency conversion, mid‐infrared lasing pump sources, and laser‐driven inertial confinement fusion motivation. The challenges and prospects for RFLs are also discussed.

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Modeling of the spectrum in a random distributed feedback fiber laser within the power balance modes

Cited by 7 publications

References 47 publications

Recent advances in fundamentals and applications of random fiber lasers

Recent advances in fundamentals and applications of random fiber lasers

Ultrafast convergent power-balance model for Raman random fiber laser with half-open cavity

Spectral Manipulations of Random Fiber Lasers: Principles, Characteristics, and Applications

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