Real‐Time Investigation of Ultrafast Dynamics through Time‐Stretched Dispersive Fourier Transform in Mode‐Locked Fiber Lasers

Lau, Kuen Yao; Cui, Yudong; Liu, Xiaofeng; Qiu, Jianrong

doi:10.1002/lpor.202200763

Cited by 7 publications

(2 citation statements)

References 198 publications

(384 reference statements)

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“…In this situation, the output single-pulse energy will be improved, accompanied with a lower laser beam quality factor (M 2 ). As well as the generation of different types of optical solitons through intra-cavity parameter management, the realtime dynamic properties of optical solitons have also been reported by some research groups [14,15], which further expand the cognition of optical solitons in nonlinear optical fiber systems.…”

Section: Introductionmentioning

confidence: 90%

Extra-cavity modulation of a chirped Gaussian bisoliton

Wang,

Li,

Peng

et al. 2024

Laser Phys.

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Optical solitons can find important applications in optical fiber communication systems. Here, we simulate extra-cavity modulation of a chirped Gaussian bisoliton in a 1 μm wavelength band. Several different soliton parameters are varied (including the amplitude ratio and time delay of orthogonal components, the projection angle, phase difference, pulse chirps and propagation distances), to effectively change the optical spectra and pulse shapes of the initial input chirped Gaussian bisoliton. For example, when the two branches in the optical fiber modulation system have the same or different fiber lengths, the modulated chirped Gaussian bisoliton will show obviously different properties in the time domain for orthogonally polarized components, while the corresponding optical spectra have no obvious differences. The simulation results reveal the effects of extra-cavity modulation of the chirped Gaussian bisoliton, which further explores the field of soliton shaping out of a fiber laser cavity.

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Section: Introductionmentioning

confidence: 90%

Extra-cavity modulation of a chirped Gaussian bisoliton

Wang,

Li,

Peng

et al. 2024

Laser Phys.

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“…However, the variation of the phase difference enables the observation of complex bound soliton dynamics 18 , such as the vibrating phase, stepwise phase, and sliding phase 19 – 21 . In recent years, the investigation of these transient dynamics has been facilitated by the application of the dispersive Fourier transform (DFT) technique 22 , 23 . Various bound solitons introduced above were predominantly classified based on their evolution traces of phase difference and separation.…”

Section: Introductionmentioning

confidence: 99%

Pure-high-even-order dispersion bound solitons complexes in ultra-fast fiber lasers

Han,

Gao,

Wen

et al. 2024

Light Sci Appl

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Temporal solitons have been the focus of much research due to their fascinating physical properties. These solitons can form bound states, which are fundamentally crucial modes in fiber laser and present striking analogies with their matter molecules counterparts, which means they have potential applications in large-capacity transmission and all-optical information storage. Although traditionally, second-order dispersion has been the dominant dispersion for conventional solitons, recent experimental and theoretical research has shown that pure-high-even-order dispersion (PHEOD) solitons with energy-width scaling can arise from the interaction of arbitrary negative-even-order dispersion and Kerr nonlinearity. Despite these advancements, research on the bound states of PHEOD solitons is currently non-existent. In this study, we obtained PHEOD bound solitons in a fiber laser using an intra-cavity spectral pulse shaper for high-order dispersion management. Specifically, we experimentally demonstrate the existence of PHEOD solitons and PHEOD bound solitons with pure-quartic, -sextic, -octic, and -decic dispersion. Numerical simulations corroborate these experimental observations. Furthermore, vibrating phase PHEOD bound soliton pairs, sliding phase PHEOD bound soliton pairs, and hybrid phase PHEOD bound tri-soliton are discovered and characterized. These results broaden the fundamental understanding of solitons and show the universality of multi-soliton patterns.

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Development of Figure‐of‐Nine Laser Cavity for Mode‐Locked Fiber Lasers: A Review

Lau,

Luo,

Lin

et al. 2024

Laser & Photonics Reviews

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Artificial saturable absorbers (SA) are nonlinear optical devices widely employed in mode‐locked lasers. Among the artificial SAs are nonlinear polarization evolution (NPE) and nonlinear amplifying loop mirrors that can work in either figure‐of‐eight (Fo8) or figure‐of‐nine (Fo9) laser cavities. The NPE technique is highly sensitive to environmental perturbations. Both Fo8 and Fo9 laser cavities exhibit a higher environmental stability than the NPE technique. Here the recent advances of the Fo9 laser cavity, with a focus on the pulse formation mechanisms and the role of different cavity parameters that can enable ultrafast mode‐locking analyses are discussed. Besides, the recent development of using the Fo9 laser cavity to generate high‐energy rectangular laser pulses through either dissipative soliton resonance or noise‐like pulse regimes is also reviewed. In conclusion, the current issues and challenges of pulse formation through the Fo9 laser cavity are highlighted and recommendations for future research directions are proposed. This review is expected to provide a deeper insight into the Fo9 laser cavity as the next generation of artificial SA with interesting cavity structures, laser features, and output performances.

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Real‐Time Investigation of Ultrafast Dynamics through Time‐Stretched Dispersive Fourier Transform in Mode‐Locked Fiber Lasers

Cited by 7 publications

References 198 publications

Extra-cavity modulation of a chirped Gaussian bisoliton

Extra-cavity modulation of a chirped Gaussian bisoliton

Pure-high-even-order dispersion bound solitons complexes in ultra-fast fiber lasers

Development of Figure‐of‐Nine Laser Cavity for Mode‐Locked Fiber Lasers: A Review

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