Tunable Multi-Wavelength Bright-Dark and Dark-Bright Pulse Pairs Fiber Lasers

Xin, Yaxing; Shen, Hong‐Bin; Yang, Zhenjun; Li, Xingliang; Liu, Jingmin; Yan, Dan

doi:10.1109/jphot.2020.3031081

Cited by 11 publications

(3 citation statements)

References 42 publications

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“…In all-normal-dispersion (1 μm waveband) [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ] and the anomalous-dispersion domain (1.5 μm, 2 μm) [ 29 , 30 , 31 , 32 , 33 , 34 ], the lasers based on NL-MMI as SA have been studied by many scholars. In 2018, Tegin et al used NL-MMI mechanism for the first time to realize mode-locking operation in the 1 μm region [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Dispersion Management Nonlinear Multimode Interference Mode-Locked Ytterbium Fiber Laser

Wang

Qiu

2023

Nanomaterials

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Dispersion management plays an important role in improving the output performance of a mode-locked fiber laser. Therefore, dispersion management is carried out by introducing the grating pair in our experiment. Through adjusting the distance between the grating pair, mode-locked pulses corresponding to different dispersion regimes can be realized, which typically range from soliton state in the anomalous dispersion regime to the dissipative soliton format in the normal dispersion regime. Furthermore, tunable spectrum distribution can be achieved by adjusting two intra-cavity polarization controllers. The proposed dispersion management method complements mode-locking techniques based on nonlinear multimode interference (NL-MMI). The laser can operate with self-start mode locking stably and is useful for practice applications.

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Section: Introductionmentioning

confidence: 99%

Dispersion Management Nonlinear Multimode Interference Mode-Locked Ytterbium Fiber Laser

Wang

Qiu

2023

Nanomaterials

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“…The bright pulses manifest a bulge increment of laser intensity and the dark pulses manifest a dip of laser intensity 2,3 . In 1989, Afanasyex et al firstly proved that the formation of dark-bright pair might result from the cross-phase modulation effect 4 . Because of the chirp cross-phase modulation and self-phase modulation produced, the cross-phase modulation could counteract the temporal spreading of an optical pulse induced by the combination of self-phase modulation together with normal dispersion.…”

Section: Introductionmentioning

confidence: 99%

Dark-bright pair between bright pulses in a multimodal interference-based Q-switched mode-locking fiber laser

Jia,

Zhao,

Qin

et al. 2023

Advanced Lasers, High-Power Lasers, and Applications XIV

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We demonstrate a Q-switched mode-locked Er-doped fiber laser using an all-fiber grade-index multimode fiber-based modulator which generates dark-bright pair between bright pulse sequences and alternate bright and dark pulses. A section of dispersion compensation fiber (Nufern UHNA4) considered as a candidate normal group victory dispersion fiber is used to adjust the net dispersion of cavity. At a pump power of 410 mW, evident Q-switched instability modulating mode-locked bright pulses are observed, and the duration of Q-switched envelope changes from 1.8 μs to 8 μs along with the variation of power. Changing the state of polarization controller, the mode-locked bright pulse train is tuned to dark pulse train with reducing the duration of Q-switched envelope to 1.2 μs. What’s more, dark-bright pair between bright pulses train and alternate bright and dark pulses are also observed under second harmonic operations with suitable PC states. Coupled complex Ginzburg-Landau equation, field coupling model for propagation in multimode fiber, and fiber nonlinear effects are provided to reveal the underlying principles of the transition of these pulse trains. Because of the principal modes and filtering effect in multimode fibers, the formation and stable propagation of the dark-bright pair are precisely achieved. At the same time, the physical mechanism behind the unusual pairing of dark and bright pulses is that under certain conditions, cross-phase modulation can counteract the time extension of optical pulses caused by the combination of self-phase modulation and normal dispersion. Thus, the cross-phase modulation induced chirping on dark solitons enables dark-bright pair between bright pulse sequences to coexist.

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“…In addition, it is also to note that at near zero GVD point, in the small-amplitude limits, the properties of vector solitons are isomorphic to the Mel'nikov solitons [144]. Some intriguing phenomena, such as the creation and annihilation of waves, formation of vector bright antidark solitons will appear.…”

Section: B Numerical Simulations and Discussionmentioning

confidence: 97%

Novel optical solitons formed in single mode fiber lasers

Hu¹

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Tunable Multi-Wavelength Bright-Dark and Dark-Bright Pulse Pairs Fiber Lasers

Cited by 11 publications

References 42 publications

Dispersion Management Nonlinear Multimode Interference Mode-Locked Ytterbium Fiber Laser

Dispersion Management Nonlinear Multimode Interference Mode-Locked Ytterbium Fiber Laser

Dark-bright pair between bright pulses in a multimodal interference-based Q-switched mode-locking fiber laser

Novel optical solitons formed in single mode fiber lasers

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