Suppression of self-pulsing in Tm:YAlO3 lasers via current feedback

Wu, Ka S.; Veitch, P. J.; Münch, J.; Ottaway, D. J.

doi:10.1007/s00340-013-5535-x

Cited by 3 publications

(7 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Self-pulsing behavior in a laser may also be explained by nonlinear dynamics with chaotic solutions [8][9][10][11][12], Of particular interest is the NH3 laser [13,14], which can be made to exhibit self-pulsing without any external perturbations. The self-pulsing of our Tm:YA103 laser [4] is remarkably similar to that of chaotic NH3 lasers [8,13]. Additionally, the observation of two distinct dynamical regimes by Razdobreev and Shes takov [7], namely, a stable cw output at low pump power and robust self-pulsing beyond a certain threshold, is consistent with an explanation in terms of nonlinear dynamic systems.…”

Section: Introductionsupporting

confidence: 85%

“…Our measured value of y is much less than that used in the model of Razdobreev and Shestakov [7], To confirm that it would result in a stable cw output, we reproduced their model and used parameters for the laser in our previous work [4], cw output was observed in the model even when various parameters were changed by a factor of 2, including the cross section, cross relaxation, and decay rates, pump rate, and cavity time constant. To further emphasize the robustness of our measurement, we compare the measured pump-probe temporal response with that predicted for y = 0.65, as shown in Fig.…”

Section: -2mentioning

confidence: 67%

“…The TimYAlOj laser described in our previous work [4] was reassembled to obtain the data for the analysis presented here. The laser was a simple crystal laser, pumped by a 790-nm fiber-coupled diode.…”

Section: Chaotic Laser Dynamicsmentioning

confidence: 99%

“…Tm:YA103 (or Tm:YAP) lasers are of particular interest due to their high efficiency [1], excellent thermomechanical properties, and natural birefringence of the crystal. A major drawback of Tm:YA103 lasers is their tendency to self-pulse, even under continuous-wave (cw) pumping [2][3][4], as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

“…The origin of the self-pulsing is not well understood, al though it has been suppressed using various types of feedback, including using intracavity acousto-optic modulators [2,3] and pump diode current actuation [4], A number of mechanisms have been proposed to explain the self-pulsing in Tm:YA103 lasers, such as pump power fluctuations [5], mechanical instabilities, and saturable absorption by water in the air of the laser resonator [6]. However, these explanations do not explain the observation of self-pulsing in all cases.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Self-pulsing in Tm-dopedYAlO3lasers: Excited-state absorption and chaos

Henderson-Sapir

Veitch

et al. 2015

Phys. Rev. A

Self Cite

View full text Add to dashboard Cite

Tm:YA10j lasers suffer from self-pulsing. A four-level rate equation analysis suggested that the self-pulsing could be due to excited-state absorption. We report a measurement of the cross section for this absorption and show that it is too small to be the sole cause of the self-pulsing. We propose nonlinear dynamical chaos as an alternative explanation and present a chaos analysis of the output of a cw-pumped Tm:YA103 laser, including experimental evidence of chaos.

show abstract

Section: Introductionsupporting

confidence: 85%

Section: -2mentioning

confidence: 67%

Section: Chaotic Laser Dynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Self-pulsing in Tm-dopedYAlO3lasers: Excited-state absorption and chaos

Henderson-Sapir

Veitch

et al. 2015

Phys. Rev. A

Self Cite

View full text Add to dashboard Cite

show abstract

Dual-wavelength paired-pulse Tm:YAlO₃/Ho:LuLiF₄ laser at 1944 and 2066 nm

yan

Liu

et al. 2023

Appl. Opt.

View full text Add to dashboard Cite

The dual-wavelength paired-pulse output of a compact self- Q -switched T m : Y A l O 3 intra-cavity pumping H o : L u L i F 4 laser was first demonstrated experimentally. By exploiting the self- Q -switching mechanism of T m : Y A l O 3 and the gain-switching operation of H o : L u L i F 4 in a cavity, the dual-wavelength paired pulses were robustly generated with the pulse energy of 29 µJ, pulse width of 2.5 µs at 1944 nm, pulse energy of 31 µJ, and pulse width of 338 ns at 2066 nm. The maximum average output powers were obtained simultaneously as high as 525 mW at 1944 nm and 323 mW at 2066 nm. The paired-pulse repetition frequency can be pump-tunable in the range of 8–22 kHz. The temporal delay in the paired pulses can be controllable from 9.5 to 2.9 µs with the pump power increasing from 15.2 to 18.4 W. The compact dual-wavelength paired-pulse laser near 2 µm has potential application in the differential absorption lidar.

show abstract