Passive Q-switching and Q-switched mode-locking operations of 2  μm Tm:CLNGG laser with MoS_2 saturable absorber mirror

Kong, Lingchen; Xie, Guoqiang; Yuan, Peng; Qian, Liejia; Wang, S. X.; Yu, Haohai; Zhang, H. J.

doi:10.1364/prj.3.000a47

Cited by 130 publications

(48 citation statements)

References 31 publications

(32 reference statements)

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“…At present, many materials have been employed as SA for passively mode-locked lasers, such as semiconductor saturable absorption mirrors, carbon nanotubes, graphene, and black phosphorus [7,8]. An excellent SA should possess the properties of higher damage threshold, ultrafast recovery time, and lower saturation intensity [9,10]. Among them, due to the complex process, narrow working bandwidth, and high cost of semiconductor saturable absorption mirrors, we need to look for other materials.…”

Section: Introductionmentioning

confidence: 99%

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

et al. 2020

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A passively Q-switched mode-locked all-solid-state Tm:CaYAIO 4 (Tm:CYA) laser with a MoS 2 saturable absorber is demonstrated for the first time. Employing a typical X-type cavity and output coupling mirror of 9%, when the laser diode pump power is higher than 8.5 W, the laser enters into a stable Q-switched mode-locked operation, further increasing the pump power into a dual-wavelength operating state; the corresponding typical center wavelengths are 1,863 and 1,877 nm. When the pump power reaches 20 W, the maximum output power is 1.15 W, the frequency of mode-locked pulse is 103.7 MHz, and the modulation depth of mode-locked pulses in the Q envelope is close to 100%. The results prove that MoS 2 saturable absorber is suitable for 2-µm high-power mode locking.

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Section: Introductionmentioning

confidence: 99%

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

et al. 2020

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“…This situation is now changing with the development of 2D materials that have been reported to have advantages such as ultrabroadband saturable absorption, low cost, and easy fabrication. These merits have made 2D materials very popular for Q-switched and mode-locked laser operation from the visible to mid-infrared wavelength ranges [16][17][18][19][20][21][22][23][24][25][26][27][28]. In fact, in terms of passively Q-switched mid-infrared lasers as the investigated topic in this work, recently graphene [21], MoS 2 [22], tungsten disulfide (WS 2 ) [23], MoTe 2 [24], ReS 2 [25], Bi 2 Te 3 [26], and black phosphorus (BP) [27,28] have been successfully used as saturable absorbers in the fields of solid-state lasers and/or fiber lasers.…”

Section: Introductionmentioning

confidence: 99%

Self-Q-switched and wavelength-tunable tungsten disulfide-based passively Q-switched Er:Y₂O₃ ceramic lasers

et al. 2018

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We report on diode-pumped Er:Y 2 O 3 ceramic lasers at about 2.7 μm in the tunable continuous-wave, self-Q-switching and tungsten disulfide (WS 2 )-based passively Q-switching regimes. For stable self-Q-switched operation, the maximum output power reaches 106.6 mW under an absorbed power of 2.71 W. The shortest pulse width is measured to be about 1.39 μs at a repetition rate of 26.7 kHz at maximum output. Using a spin-coated WS 2 as a saturable absorber, a passively Q-switched Er:Y 2 O 3 ceramic laser is also realized with a maximum average output power of 233.5 mW (for the first time, to the best of our knowledge). The shortest pulse width decreases to 0.72 μs at a corresponding repetition rate of 29.4 kHz, which leads to a pulse energy of 7.92 μJ and a peak power of 11.0 W. By inserting an undoped YAG thin plate as a Fabry-Perot etalon, for the passive Q switching, wavelength tunings are also demonstrated at around 2710, 2717, 2727, and 2740 nm.

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“…Due to the interlayer coupling, the bandgap is transformed from indirect to direct as the bulk TMDs are decreased to monolayer212223. These features render them as the promising candidate for optoelectronic and photovoltaic devices222425. The present most studied monolayer TMDs have a 2 H lattice structure, which means that their electronic and optical properties are in-plane isotropic2126.…”

mentioning

confidence: 99%

Nonlinear Saturable and Polarization-induced Absorption of Rhenium Disulfide

Cui

Liu

2017

Sci Rep

118

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Monolayer of transition metal dichalcogenides (TMDs), with lamellar structure as that of graphene, has attracted significant attentions in optoelectronics and photonics. Here, we focus on the optical absorption response of a new member TMDs, rhenium disulphide (ReS2) whose monolayer and bulk forms have the nearly identical band structures. The nonlinear saturable and polarization-induced absorption of ReS2 are investigated at near-infrared communication band beyond its bandgap. It is found that the ReS2-covered D-shaped fiber (RDF) displays the remarkable polarization-induced absorption, which indicates the different responses for transverse electric (TE) and transverse magnetic (TM) polarizations relative to ReS2 plane. Nonlinear saturable absorption of RDF exhibits the similar saturable fluence of several tens of μJ/cm2 and modulation depth of about 1% for ultrafast pulses with two orthogonal polarizations. RDF is utilized as a saturable absorber to achieve self-started mode-locking operation in an Er-doped fiber laser. The results broaden the operation wavelength of ReS2 from visible light to around 1550 nm, and numerous applications may benefit from the anisotropic and nonlinear absorption characteristics of ReS2, such as in-line optical polarizers, high-power pulsed lasers, and optical communication system.

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Passive Q-switching and Q-switched mode-locking operations of 2 μm Tm:CLNGG laser with MoS_2 saturable absorber mirror

Cited by 130 publications

References 31 publications

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

Self-Q-switched and wavelength-tunable tungsten disulfide-based passively Q-switched Er:Y₂O₃ ceramic lasers

Nonlinear Saturable and Polarization-induced Absorption of Rhenium Disulfide

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Passive Q-switching and Q-switched mode-locking operations of 2 μm Tm:CLNGG laser with MoS_2 saturable absorber mirror

Cited by 130 publications

References 31 publications

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

Self-Q-switched and wavelength-tunable tungsten disulfide-based passively Q-switched Er:Y2O3 ceramic lasers

Nonlinear Saturable and Polarization-induced Absorption of Rhenium Disulfide

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Self-Q-switched and wavelength-tunable tungsten disulfide-based passively Q-switched Er:Y₂O₃ ceramic lasers