Numerical modeling of fiber lasers with long and ultra-long ring cavity

Yarutkina, I. A.; Штырина, О. В.; Федорук, М. П.; Turitsyn, Sergei K.

doi:10.1364/oe.21.012942

Cited by 49 publications

(29 citation statements)

References 32 publications

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“…However, fiber lasers offer another important degree of freedom that can be used for designing novel generation regimes: resonator length. As was demonstrated by multiple groups [25][26][27][28][29][30][31][32][33], the cavity length has a substantial impact on the output pulse parameters in mode-locked fiber lasers. Specifically, it is possible to control the pulse energy and repetition rate by changing the laser cavity.…”

Section: Ultra-long Mode-locked Fiber Lasers: Discussionmentioning

confidence: 98%

“…It was experimentally and theoretically confirmed that passively mode-locked fiber master oscillators give rise to a broad variety of generation regimes in different cavity configurations [46][47][48][49][50][51][52][53], including generation of single and multiple pulses over a cavity round-trip, pulses with various duration, envelope shape, and spectrum width. The results of Refs [30,52] show that in ultra-long lasers, there is high probability of generating double-scale partially coherent pulses, whereas ''normal'' (single-scale) pulses with a smooth temporal optical phase shape and large chirp become difficult to obtain. This indicates a step difference from the traditional mode-locking theory and may be considered as a partial mode-locking, when phase locking is not between all resonator modes, but rather between groups/clusters of modes.…”

Section: Ultra-long Mode-locked Fiber Lasers: Discussionmentioning

confidence: 99%

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Mode-locked fiber lasers with significant variability of generation regimes

Kobtsev

Smirnov

Kukarin

et al. 2014

Optical Fiber Technology

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a b s t r a c tWe demonstrate a great variability of single-pulse (with only one pulse/wave-packet traveling along the cavity) generation regimes in fiber lasers passively mode-locked by non-linear polarization evolution (NPE) effect. Combining extensive numerical modeling and experimental studies, we identify multiple very distinct lasing regimes with a rich variety of dynamic behavior and a remarkably broad spread of key parameters (by an order of magnitude and more) of the generated pulses. Such a broad range of variability of possible lasing regimes necessitates developing techniques for control/adjustment of such key pulse parameters as duration, radiation spectrum, and the shape of the auto-correlation function. From a practical view point, availability of pulses/wave-packets with such different characteristics from the same laser makes it imperative to develop variability-aware designs with control techniques and methods to select appropriate application-oriented regimes.

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Section: Ultra-long Mode-locked Fiber Lasers: Discussionmentioning

confidence: 98%

Section: Ultra-long Mode-locked Fiber Lasers: Discussionmentioning

confidence: 99%

Mode-locked fiber lasers with significant variability of generation regimes

Kobtsev

Smirnov

Kukarin

et al. 2014

Optical Fiber Technology

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“…As it has been shown that the simulated steady-state is influenced by the form of the initial seed field in some cases (e.g. lasers with long cavities [147]), here we choose to seed stochastically using a one-photonper-mode shot noise model, analogous to real-world experimental systems. Propagation in fibre is described by a generalised nonlinear Schrödinger equation (similar to the formalism of Ref.…”

Section: Appendix: Numerical Modelling Methodsmentioning

confidence: 99%

Dispersion engineering of mode-locked fibre lasers

Woodward

2018

J. Opt.

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Mode-locked fibre lasers are important sources of ultrashort pulses, where stable pulse generation is achieved through a balance of periodic amplitude and phase evolutions. A range of distinct cavity pulse dynamics have been revealed, arising from interplay between dispersion and nonlinearity in addition to dissipative processes such as filtering. This has led to the discovery of numerous novel operating regimes, offering significantly improved laser performance. In this Topical Review, we summarise the main steady-state pulse dynamics reported to date through cavity dispersion engineering, including average solitons, dispersion-managed solitons, dissipative solitons, giant-chirped pulses and similaritons. Characteristic features and the stabilisation mechanism of each regime are described, supported by numerical modelling, in addition to the typical performance and limitations. Opportunities for further pulse energy scaling are discussed, in addition to considering other recent advances including automated self-tuning cavities and fluoride-fibre-based mid-infrared mode-locked lasers.

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“…38 Moreover, our results for the parabolic shape of the pulse and the behavior of the laser pulse propagation through the fiber laser exhibit good agreement with previous studies. [39][40][41][42][43] …”

Section: Discussionmentioning

confidence: 99%

Soliton building from spontaneous emission by ring-cavity fiber laser using carbon nanotubes for passive mode locking

Al-zahy

2014

Opt. Eng

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Abstract. We investigate the generation of a chirped pulse in a single-mode, ring-cavity, erbium-doped fiber laser employing carbon nanotubes (CNTs) as a saturable absorber (SA). The pulse propagation is simulated using analytical methods to understand and quantify the role of multiple SA properties, particularly in the propagation dynamics of the laser pulse. The soliton solution is obtained on the basis of nonlinear effects, such as gain dispersion, second anomalous group-velocity dispersion, self-phase modulation, and two-photon absorption for a generalized nonlinear Schrodinger equation. The influences of the SA parameter in the range from 0.1 to 0.4 on the chirp, power, and width of the soliton are calculated. A stable, passively mode-locked fiber laser using CNTs as an SA is modeled. In addition, the power, width, chirp, and phase of the soliton pulses can be tuned by choosing suitable SA parameters.

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Numerical modeling of fiber lasers with long and ultra-long ring cavity

Cited by 49 publications

References 32 publications

Mode-locked fiber lasers with significant variability of generation regimes

Mode-locked fiber lasers with significant variability of generation regimes

Dispersion engineering of mode-locked fibre lasers

Soliton building from spontaneous emission by ring-cavity fiber laser using carbon nanotubes for passive mode locking

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