Noise-like square pulses in a linear-cavity NPR mode-locked Yb-doped fiber laser

Dong, Tianhao; Lin, Jin; Zhou, Yong; Gu, Changzhi; Yao, Peijun; Xu, Lixin

doi:10.1016/j.optlastec.2020.106740

Cited by 19 publications

(5 citation statements)

References 31 publications

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“…The effect of nonlinear polarisation evolution (NPE) [15] is often used as the basis of artificial saturable absorbers [16] for generation of noise-like pulses [17][18][19][20][21][22][23]. The optical layouts of such cavities are predominantly experimental and conceptual because of indeterminate adjustment procedure of the polarisation controller(s).…”

Section: Npe Mode-lockingmentioning

confidence: 99%

“…The available choice of artificial saturable absorbers used for mode locking in fibre lasers may be consulted in [16]. In configurations for generation of noise-like pulses, such artificial saturable absorbers are most frequently used as NPE, non-linear optical loop mirrors [24][25][26][27], non-linear amplifying loop mirrors [28][29][30][31], and spatial filters relying on fibre type transitions such as SMF-MMF-SMF [32][33][34][35][36]. It does not appear possible to name a certain of these absorbers as the best, since all of them have their own peculiar advantages and drawbacks.…”

Section: Mode Locking Via Other Artificial Absorbersmentioning

confidence: 99%

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Incoherent laser

Kobtsev¹

2022

Advanced Lasers, High-Power Lasers, and Applications XIII

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The report considers prospects of development, on the basis of fibre lasers, of an 'incoherent laser' producing noise-like pulses. The possibility is demonstrated of a radically new radiation source occupying, in terms of output properties, an intermediate place between incandescent bulb and laser. Combination in such a laser of high output beam directivity, brightness and incoherent character of the radiation is quite important in many applications where speckle patterns of the light field are an undesirable effect.

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Section: Npe Mode-lockingmentioning

confidence: 99%

Section: Mode Locking Via Other Artificial Absorbersmentioning

confidence: 99%

Incoherent laser

Kobtsev¹

2022

Advanced Lasers, High-Power Lasers, and Applications XIII

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“…tion. Subsequently, NLPs were reported in various wavelength and cavity types [10][11][12]. Wide bandwidth [13], high peak power [14], higher harmonics [15], and noise-like squarepulses [16] are also achieved.…”

Section: Introductionmentioning

confidence: 99%

Bound noise-like pulse generation from Yb-doped passively mode-locked fiber lasers

Gao¹,

Wu²,

Liu³

et al. 2022

Laser Phys. Lett.

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We demonstrated two different types of bound noise-like pulses (NLPs) in ytterbium-doped mode-locked fiber lasers using the nonlinear polarization rotation technique. In the anomalous dispersion area, there were multiple spikes in the intensity autocorrelation (IAC) trace. In the normal dispersion area, the spike presented only in the center the of IAC trace. The results of the experiment show that the bound state NLPs may have partial coherence.

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“…Among the modulation methods, passively saturable absorber based fiber lasers are developing especially rapidly [13][14][15]. In addition, nonlinear polarization rotation (NPR) [16][17][18] and nonlinear amplification ring mirrors (NALM) can be used as artificial saturable absorbers using nonlinear effects [19][20]. However, the real application of NPR and NALM is constrained by limited output power, weak ambient stability and difficulty in self-starting [22].…”

Section: Introductionmentioning

confidence: 99%

Indium antimonide-based saturable absorber to demonstrate passively Q-switched and mode-locked operation

Sun,

Xu,

Ding

et al. 2024

Advanced Fiber Laser Conference (AFL2023)

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In this work, an Indium Antimonide-polyvinyl alcohol (InSb-PVA) film was fabricated, and its nonlinear characteristics were researched. The modulation depth intensity and saturation intensity were 13.61% and 2.02 MW/cm 2 , correspondingly. Based on InSb as a saturable absorber (SA), an erbium-doped fiber laser (EDFL) with passively Qswitched and mode-locked operation was generated. The Q-switched operation was achieved with a maxinum pulse energy of 45.8 nJ and a minimum pulse duration of 4.3 μs. As the pump power rises, the repetition rate rises from 7.6 kHz to 25.05 kHz and the pulse duration falls from 20.1 μs to 4.3 μs. By adjusting the length of the single-mode fiber to manage the dispersion, a stable mode-locked EDFL with a maximum average output power of 8.03 mW and a central wavelength of 1566.54 nm was obtained. The experimental results fully demonstrated that InSb has remarkable nonlinear absorption performance and enormous potential for ultra-fast photonics devices.

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Noise-like square pulses in a linear-cavity NPR mode-locked Yb-doped fiber laser

Cited by 19 publications

References 31 publications

Incoherent laser

Incoherent laser

Bound noise-like pulse generation from Yb-doped passively mode-locked fiber lasers

Indium antimonide-based saturable absorber to demonstrate passively Q-switched and mode-locked operation

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