Investigations on pulse dynamics and offset spectral filtering in Er-doped Mamyshev fiber oscillator

Zhang, Yusheng; Dai, Ke; Zhang, Bin; Chen, Daru; Guan, Zuguang; Cui, Yudong

doi:10.1016/j.optcom.2022.129103

Cited by 7 publications

(7 citation statements)

References 36 publications

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“…To simulate pulse propagation in the Mamyshev oscillator, the numerical simulation is performed in a lumped propagation model. The pulse propagation within the different fiber sections is modeled using the extended nonlinear Schrödinger (NLS) equation [22,[27][28][29]:…”

Section: Theoretical Modelmentioning

confidence: 99%

“…γ is the nonlinear Kerr coefficient and Ω g is the gain bandwidth. The gain effect of YDF and the pump is described by the gain coefficient g, which is defined as [22,[27][28][29]:…”

Section: Theoretical Modelmentioning

confidence: 99%

“…To numerically simulate the evolution of pulses in the Mamyshev oscillator, the splitstep Fourier method is used, and the initial signal is injected, which consists of a Gaussian pulse and weak random noise at the bottom [22,30]. Due to its excellent noise suppression ability, it is very difficult for the Mamyshev oscillator to achieve self-start mode locking through the noise pulses generated by spontaneous emission.…”

Section: Influence Of the Key Parameters On Multi-pulse Dynamicsmentioning

confidence: 99%

“…Mamyshev oscillators can not only generate high-quality pulses, but also can provide a promising platform for investigating pulse evolution dynamics due to their environmental stability [21,22]. Similar to most natural or artificial saturable absorbers (SAs), Mamyshev oscillators can exhibit different multi-pulse patterns when the parameters are appropriately set.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Spectral Filtering Bandwidth and Laser Gain on the Bound-State Pulse Formation Mechanism and Evolutionary Dynamics in the All-Fiber Mamyshev Oscillator

Qi,

Zhang,

Bai

et al. 2024

Photonics

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We present a numerical investigation of the bound-state pulse formation mechanism and evolutionary dynamics based on the pump strength and spectral filtering bandwidth in the all-fiber Mamyshev oscillator. Through the numerical simulation and analysis, the different mode-locked pulses’ (such as single pulses, bound-state pulses, and chaotic multi-pulses) regime transformation conditions are quantified. The results suggest that with an increase in the pump strength, the sub-pulse energy and output coupler of the Mamyshev oscillator show an inverse proportion trend, which plays an important role in increasing the number of sub-pulses in the bound-state pulses’ state. Furthermore, optimization schemes, such as adjusting the filter bandwidth and slowing down the accumulation of nonlinear effects, are proposed to achieve a high-energy pulse output in the Mamyshev oscillator.

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Section: Theoretical Modelmentioning

confidence: 99%

“…γ is the nonlinear Kerr coefficient and Ω g is the gain bandwidth. The gain effect of YDF and the pump is described by the gain coefficient g, which is defined as [22,[27][28][29]:…”

Section: Theoretical Modelmentioning

confidence: 99%

Section: Influence Of the Key Parameters On Multi-pulse Dynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Influence of Spectral Filtering Bandwidth and Laser Gain on the Bound-State Pulse Formation Mechanism and Evolutionary Dynamics in the All-Fiber Mamyshev Oscillator

Qi,

Zhang,

Bai

et al. 2024

Photonics

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“…Xu et al reported multipulse dynamics in an erbium doped fiber MO by adjusting the pump power [10]. Recently, Zhang et al have shown by numerical simulations that spectral offset filtering is analogous to a saturable absorber and can influence physical properties of the output pulses in the MO [11]. In the case of a Yb-doped fiber MO; single, double, triple and even multiple pulses have been generated per round trip with an increase in the pump power [12].…”

Section: Introductionmentioning

confidence: 99%

Multipulse operation in Mamyshev oscillator: influence of external seed source

Nigam,

Gupta,

Singh

et al. 2023

Laser Phys.

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We study the influence of an external seed source on the startup of a fiber Mamyshev oscillator (MO). Depending on the seed source parameters, while keeping MO parameters fixed, we observe diverse mode-locked operations from the MO, generating stable single, double, triple and even up to a group of seven pulses. The probability of the occurrence of such mode-locked operations is studied. There can be different operating regimes in a particular multipulse operation. We find that there is an optimum spectral width of the seed source for which the probability of generating mode-locked stable train of single pulses from a fiber MO is maximum. Further, we find that the power of the seed source has less influence on the mode-locking state of the fiber MO; however, the probability of single or double pulse operation is relatively higher than that of multipulse operation at higher power of the seed source. These experimental observations will enrich the database of multipulse patterns and help in understanding pulse dynamics in the fiber MO. Suitably chosen seed source parameters can generate the desired pulse pattern. Such tailored outputs could have prospective applications in laser micromachining and high bit rate data transfer in optical networks.

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Wide tuning range q-switched ytterbium doped fiber laser based on V2AlC saturable absorber

Ridha

Al‐Janabi

2023

Opt Quant Electron

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Investigations on pulse dynamics and offset spectral filtering in Er-doped Mamyshev fiber oscillator

Cited by 7 publications

References 36 publications

The Influence of Spectral Filtering Bandwidth and Laser Gain on the Bound-State Pulse Formation Mechanism and Evolutionary Dynamics in the All-Fiber Mamyshev Oscillator

The Influence of Spectral Filtering Bandwidth and Laser Gain on the Bound-State Pulse Formation Mechanism and Evolutionary Dynamics in the All-Fiber Mamyshev Oscillator

Multipulse operation in Mamyshev oscillator: influence of external seed source

Wide tuning range q-switched ytterbium doped fiber laser based on V2AlC saturable absorber

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