Broadband tuning of a long-cavity all-fiber mode-locked thulium-doped fiber laser using an acousto-optic bandpass filter

Hernández-Escobar, E.; Bello-Jiménez, M.; Camarillo-Avilés, A.; López-Estopíer, R.; Pottiez, O.; Hernández-Arriaga, M. V.; Durán-Sánchez, M.; Ibarra-Escamilla, B.; Andrés, Miguel V.

doi:10.1364/ol.44.004183

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…On the other hand, the synchronized dual-wavelength pulses adjust to a repetition frequency that is intermediate between the frequencies of single-wavelength pulses. With these experimental results, we can determine the net dispersion of the laser cavity [24]. The average ratio ∆T/∆λ is equal to 3.77 ps nm −1 and gives a net cavity dispersion of −8 ps 2 at the central wavelength of 1998.59 nm.…”

Section: Resultsmentioning

confidence: 99%

Solitons, single- and synchronous dual-wavelength noise-like pulses and hybrid regimes from a thulium-doped fiber laser

Ibarra-Garrido¹,

Durán-Sánchez²,

Pottiez³

et al. 2022

Laser Phys. Lett.

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In a passively mode-locked thulium-doped fiber laser within the anomalous dispersion regime, we experimentally demonstrate conventional soliton (CS), hybrid (noise-like pulse (NLP) and solitons), as well as switchable single-wavelength and synchronous dual-wavelength NLP regimes. By properly adjusting the PCs, we can switch between CS to hybrid and single- or dual-wavelength NLP regimes. With sufficient pumping power and through manual polarization adjustments, self-starting mode locking at 1996 nm can be observed. At the pump power of 2.5 W, stable mode locking with an output power of 86 mW is obtained. When generating the CS state, Kelly sidebands due to the spectral interference of dispersive waves are observed. Keeping the pump power at 2.5 W but with a modification of the polarization adjustment we can switch to five different regimes involving NLPs with squared envelope. The noise-like nature of the squared pulses was confirmed in each case through an autocorrelation measurement. By additional adjusting of the PCs, single- and synchronous dual-wavelength squared NLPs can be generated, at either one of two wavelengths in the former case, and at both simultaneously in the latter. The pulse trains from the single-wavelength operations display a small difference in their repetition frequencies inherently determined by intracavity dispersion, whereas in dual-wavelength operation the pulse train displays a single repetition rate whose value is intermediate between the single-wavelength frequencies. The obtained results are valuable to deepen our understanding on the formation of CS and dual-wavelength pulses with noise-like squared profiles in fiber lasers.

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Section: Resultsmentioning

confidence: 99%

Solitons, single- and synchronous dual-wavelength noise-like pulses and hybrid regimes from a thulium-doped fiber laser

Ibarra-Garrido¹,

Durán-Sánchez²,

Pottiez³

et al. 2022

Laser Phys. Lett.

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“…All-fiber acousto-optic tunable filters (AOTFs) [1] have been widely used in wavelength division multiplexing (WDM) optical communication [2], signal processing [3,4], tunable lasers [5][6][7] and other fields, because they have the advantages of large tuning range [8][9][10][11][12], fast tuning speed [13][14][15][16], simple fabrication and small insertion loss [17]. The acoustooptic (AO) coupling efficiency can be controlled by the voltage of the radio-frequency (RF) driving signal [18].…”

Section: Introductionmentioning

confidence: 99%

Tuning stability enhancement of all-fiber acousto-optic tunable filter based on multi-piezoelectric transducer

Qiu,

Bai,

et al. 2023

Laser Phys.

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All-fiber acousto-optic tunable filters (AOTFs) have advantages of wide wavelength tuning range, fast tuning speed and low insertion loss. The resonance wavelength of the all-fiber AOTF can be tuned by adjusting the driving frequency of the piezoelectric transducer (PZT). In general, the driving voltage needs to be tuned in wide range in the wavelength tuning process, due to the existence of resonance frequency of the PZT. In this work, we propose and demonstrate a stability-enhanced all-fiber AOTF based on multi-PZT, which can reduce the dependence on the resonant frequency of a single PZT. In the experiment, the acousto-optic coupling efficiency can maintain larger than 80%, when the resonance wavelength of the AOTF is tuned from 1400 nm to 1600 nm, under the condition of a fixed driving voltage. The high tuning stability of the proposed multi-piezoelectric driving configuration can facilitate the practical applications of the all-fiber AOTF, such as the laser wavelength tuning, wavelength-division-multiplexing optical communication, fast optical spectroscopy, and so on.

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Investigation on different type of pulses due to strong third order dispersion effect in mode-locked fiber lasers

Dai

Zhang

Tao

et al. 2023

Optik

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Broadband tuning of a long-cavity all-fiber mode-locked thulium-doped fiber laser using an acousto-optic bandpass filter

Cited by 9 publications

References 20 publications

Solitons, single- and synchronous dual-wavelength noise-like pulses and hybrid regimes from a thulium-doped fiber laser

Solitons, single- and synchronous dual-wavelength noise-like pulses and hybrid regimes from a thulium-doped fiber laser

Tuning stability enhancement of all-fiber acousto-optic tunable filter based on multi-piezoelectric transducer

Investigation on different type of pulses due to strong third order dispersion effect in mode-locked fiber lasers

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