Investigation on 1.0 and 1.3 µm laser performance of Nd3+:GYAP crystal

Zhou, Haoyang; Zhu, Siqi; Li, Zhen; Yin, Hao; Zhang, Peixiong; Chen, Zhenqiang; Fu, Shenhe; Zhang, Qingmao; Lv, Qitao

doi:10.1016/j.optlastec.2019.105601

Cited by 8 publications

(4 citation statements)

References 25 publications

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“…Although Equation ( 12) is derived under the condition of pulsed pumping, a simple mathematical transformation shows that it also applies to continuous pumping. In Equation (12), τ 0 , r 0 , and w 0 are constants that do not vary with the concentration of doped ions. The acquisition of these three values allows for a clear understanding of the kinetic process of the excited state population and the optimal relative doping concentration.…”

Section: Theoretical Analysismentioning

confidence: 99%

“…Crystals doped with rare earth ions and exhibiting a combination of active (laser) and nonlinear properties ("active-nonlinear" crystals) have been investigated intensively during the last decade [7][8][9][10]. Earlier studies show Nd 3+ concentrations greater than 1 at.% result in self-quenching in the fluorescence lifetime, a reduction in fluorescence intensity, and steep increment in threshold [11][12][13][14][15][16]. When increasing the active impurity concentration of laser crystals to search for high efficiency fluorescence emission, several processes such as concentration quenching of the luminescence and cross-relaxation of the active impurity Crystals 2024, 14, 168 2 of 11 may arise.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Doping Concentrations of Nd3+ Ions in CYGA Laser Crystals

Lu,

Tan,

et al. 2024

Crystals

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The kinetic process of the excited state population of Nd3+ ion in Nd: CaY0.9Gd0.1AlO4 (Nd: CYGA) crystal were studied in detail to estimate the optimal doping concentration, which maximize ~1 μm fluorescence emission from the 4F3/2 state to the 4I9/2 state of Nd3+. The analysis was accomplished by revealing the dependence of the excited state population on the doping concentration in a relatively convenient way in theory. After comparing the theoretical prediction results with the experimental findings and approximating the results obtained using the aforementioned method, the optimal relative doping concentration of Nd: CYGA was determined to be 2.1 at.%, which closely matched the 2.0 at.% obtained through experimental comparison. This verifies the effectiveness and accuracy of the proposed method. In particular, it is worth mentioning that in this method only one doping concentration of the crystal is required to obtain the optimal concentration, which may be used to guide the concentration optimization process for improving efficiency and saving resources.

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Section: Theoretical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Doping Concentrations of Nd3+ Ions in CYGA Laser Crystals

Lu,

Tan,

et al. 2024

Crystals

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“…The crystal is of good quality; it is pure and crack free. At the same time, we realized the optical modulation of β-Ga 2 O 3 in pulse laser generation for the first time on the laser device with b-cut Nd:GYAP (Nd:Gd 0.1 Y 0.9 AlO 3 ) as the laser medium [31]. The maximum average output power is 195.1 mW, which is obtained at 1080.4 nm.…”

Section: Introductionmentioning

confidence: 98%

β-Ga2O3 Used as a Saturable Sbsorber to Realize Passively Q-Switched Laser Output

Chen

Zhang

et al. 2021

Crystals

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β-Ga2O3 crystals have attracted great attention in the fields of photonics and photoelectronics because of their ultrawide band gap and high thermal conductivity. Here, a pure β-Ga2O3 crystal was successfully grown by the optical floating zone (OFZ) method, and was used as a saturable absorber to realize a passively Q-switched all-solid-state 1 μm laser for the first time. By placing the as-grown β-Ga2O3 crystal into the resonator of the Nd:GYAP solid-state laser, Q-switched pulses at the center wavelength of 1080.4 nm are generated under a output coupling of 10%. The maximum output power is 191.5 mW, while the shortest pulse width is 606.54 ns, and the maximum repetition frequency is 344.06 kHz. The maximum pulse energy and peak power are 0.567 μJ and 0.93 W, respectively. Our experimental results show that the β-Ga2O3 crystal has great potential in the development of an all-solid-state 1 μm pulsed laser.

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“…The crystal is of good quality which is pure and crack free. At the same time, we realized the optical modulation of the β-Ga2O3 in the pulse laser generation for the first time on the laser device with b-cut Nd:GYAP(Nd:Gd0.1Y0.9AlO3) as the laser medium [30]. The maximum average output power is 195.1 mW which is obtained at 1080.4 nm.…”

Section: Introductionmentioning

confidence: 98%

β-Ga<sub>2</sub>O<sub>3</sub> Used as a Saturable Absorber to Realize Passively Q-Switched Laser Output

Li¹,

Chen²,

Zhang³

et al. 2021

Preprint

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β-Ga2O3 crystal have attracted great attentions in the fields of photonics and photoelectronics because of its ultra wide-band gap and high thermal conductivity. Here, pure β-Ga2O3 crystal was successfully grown by optical floating zone (OFZ) method, and used as saturable absorbers to realize a passively Q-switched all-solid-state 1μm laser for the first time. By placing the as-grown β-Ga2O3 crystal into the resonator of Nd:GYAP solid-state laser, a Q-switched pulses at the center wavelength of 1080.4 nm are generated under a output coupling of 10%. The maximum output power is 191.5 mW while the shortest pulse width is 606.54 ns, and the maximum repetition frequency is 344.06 kHz. The maximum pulse energy and peak power are 0.567 μJ and 0.93 W, respectively. Our experimental results show that β-Ga2O3 crystal has great potential in the development of all-solid-state 1μm pulsed laser.

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Investigation on 1.0 and 1.3 µm laser performance of Nd3+:GYAP crystal

Cited by 8 publications

References 25 publications

Optimal Doping Concentrations of Nd3+ Ions in CYGA Laser Crystals

Optimal Doping Concentrations of Nd3+ Ions in CYGA Laser Crystals

β-Ga2O3 Used as a Saturable Sbsorber to Realize Passively Q-Switched Laser Output

β-Ga<sub>2</sub>O<sub>3</sub> Used as a Saturable Absorber to Realize Passively Q-Switched Laser Output

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Investigation on 1.0 and 1.3 µm laser performance of Nd3+:GYAP crystal

Cited by 8 publications

References 25 publications

Optimal Doping Concentrations of Nd3+ Ions in CYGA Laser Crystals

Optimal Doping Concentrations of Nd3+ Ions in CYGA Laser Crystals

β-Ga2O3 Used as a Saturable Sbsorber to Realize Passively Q-Switched Laser Output

β-Ga<sub>2</sub>O<sub>3</sub> Used as a Saturable Absorber to Realize Passively Q-Switched Laser Output

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Investigation on 1.0 and 1.3 µm laser performance of Nd3+:GYAP crystal