Single and dual-wavelength noise-like pulses with different shapes in a double-clad Er/Yb fiber laser

Bravo-Huerta, E.; Durán-Sánchez, M.; Álvarez-Tamayo, R. I.; Santiago-Hernández, H.; Bello-Jiménez, M.; Posada-Ramírez, B.; Ibarra-Escamilla, B.; Pottiez, O.; Kuzin, E. A.

doi:10.1364/oe.27.012349

Cited by 33 publications

(8 citation statements)

References 36 publications

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“…It is worth noting that the center wavelength is always maintained at 1550 nm. The result of this spectral change coincides with the previous report of NLPs [4,6,7]. In addition, as the pump power increases from 200 mW to 550 mW, the pulse width evolves more obviously without splitting.…”

Section: Resultssupporting

confidence: 91%

“…as the following mode-locked techniques: nonlinear optical loop mirror (NOLM) [2][3][4], nonlinear amplifying loop mirror (NALM) [5][6][7], NPR [8][9][10], real saturable absorber [11,12]. Currently, the center wavelength of NLPs is mainly distributed in 1030 nm [8] 1044 nm to 1057 nm [13], 1319.17 nm [14], 1530.5 nm [15] 1564.9 nm, 1568 nm [5], 1895 nm to 1942 nm [11] and so on.…”

Section: Introductionmentioning

confidence: 99%

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Noise-like pulses with 2.15 MHz repetition rate in an all-polarization-maintaining mode-locked fiber laser at the center wavelength of 1550 nm

Zhou

Pei

Yin³

et al. 2021

Laser Phys.

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We demonstrate a 2.15 MHz repetition-rate mode-locked figure-of-9 erbium-doped fiber laser at a center wavelength of 1550 nm by using an all-polarization-maintaining nonlinear amplifying loop mirror configuration. This laser can be self-started mode-locked and generate Gaussian-shape noise-like pulses (NLPs). The single pulse energy is approximately 11.68 nJ at a repetition rate of 2.15 MHz. Dispersion compensation fibers are added into the cavity to make the laser operate in a net normal dispersion regime and generate NLPs at the center wavelength of 1550 nm. These characteristics give it a great application potential, such as low spectral coherence interference, optical sensing and micromachining. In addition, we have investigated the evolution of these characteristics, contributing to further understanding the Gaussian-shape NLP.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Noise-like pulses with 2.15 MHz repetition rate in an all-polarization-maintaining mode-locked fiber laser at the center wavelength of 1550 nm

Zhou

Pei

Yin³

et al. 2021

Laser Phys.

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“…[1][2][3][4][5][6][7][8][9][10][11] Since the end of the last century, theories and experiments on the harmonic mode-locked (HML) fiber lasers have been widely reported. [12][13][14][15][16] The HML pulses can be acquired via the passively mode-locked technique based on nonlinear amplifying loop-mirror, 17 nonlinear polarization rotation, 12,18,19 or real saturable absorbers (SAs). Among these, HML fiber lasers with different SAs are widely investigated because of its effectivity and convenience.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the saturable absorption characteristics of GeNS and its application to harmonic mode‐locked modulation

Liu

Sun²,

Liu

et al. 2023

Micro & Optical Tech Letters

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The high‐quality germanene nanosheets (GeNS) were fabricated by a liquid‐phase exfoliated technique and used as the saturable absorber (SA) to generate the harmonic mode‐locked (HML) pulses in an Er‐doped fiber laser. The investigation on the nonlinear absorption effect of the GeNS was carried out systemically in this work. On the basis of the GeNS SA, the third‐ and fourth‐order HML pulses with repetition rates of 5.275 and 7.031 MHz were achieved, corresponding to the minimum pulse width of 3.04 and 3.21 ps, respectively. The research reveals that the GeNS has great capability for ultrafast pulses modulation and can be used as an outstanding nonlinear optical device to expand its applications in nonlinear optics.

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“…The pulse energy and width under DSR conditions can increase infinitely with increasing pump power while the amplitude remains constant [12]. Since the DSR was proposed, there are many studies about DSR [13]- [16]. During the studies, people have found another pulse mechanism, NLSPs, whose characteristics are similar to the DSR pulses.…”

Section: Introductionmentioning

confidence: 99%

“…NLSPs can be proved by measuring the pulse autocorrelation trace, which has an obvious narrow spike on top of a broad pedestal. NLSP is an ideal way to achieve high-energy noise-like pulse, and it can have some potential applications in many important areas, such as low spectral coherence interferometry, laser micromachining, optical sensing, medical imaging, and supercontinuum (SC) generation [13], [15], [20].…”

Section: Introductionmentioning

confidence: 99%

Noise-Like Square Pulses in Both Normal and Anomalous Dispersion Regimes

Dong

Lin

Gu³

et al. 2021

IEEE Photonics J.

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Noise-like square pulses (NLSPs) have been experimentally investigated in both normal and anomalous dispersion regimes. A chirped fiber Bragg grating (CFBG) has been employed as a dispersion management element in the compact linear-cavity mode-locked Yb-doped fiber laser. The net cavity dispersion could be switched from large anomalous dispersion (-2.71 ps) to large normal dispersion (+5.33 ps 2), depending on the direction of CFBG inserting in laser cavity. Two kinds of NLSPs with different temporal profiles are achieved in the proposed laser. In anomalous dispersion regime, the square pulse duration can be tuned from 0.91 ns to 5.39 ns, and the maximum square pulse energy is 39.57 nJ. In normal dispersion regime, the top of the pulse is flatter, the square pulse duration can be tuned from 0.89 ns to 5.97 ns, and the maximum square pulse energy is slightly higher, up to 40.17 nJ. The output laser is linearly polarized.

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Single and dual-wavelength noise-like pulses with different shapes in a double-clad Er/Yb fiber laser

Cited by 33 publications

References 36 publications

Noise-like pulses with 2.15 MHz repetition rate in an all-polarization-maintaining mode-locked fiber laser at the center wavelength of 1550 nm

Noise-like pulses with 2.15 MHz repetition rate in an all-polarization-maintaining mode-locked fiber laser at the center wavelength of 1550 nm

Investigation on the saturable absorption characteristics of GeNS and its application to harmonic mode‐locked modulation

Noise-Like Square Pulses in Both Normal and Anomalous Dispersion Regimes

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