Power scaling of an actively Q-switched orthogonally polarized dual-wavelength Nd:YLF laser at 1047 and 1053  nm

Zuo, Zhi-Yu; Dai, Shi-Bo; Zhu, Siqi; Yin, Hao; Li, Zhen; Chen, Zhenqiang

doi:10.1364/ol.43.004578

Cited by 26 publications

(10 citation statements)

References 26 publications

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“…The full-width-half-maximum (FWHM) pulse duration was 35 ns. Compared with the other results of high-power dual-wavelength lasers [17], the conversion efficiency here was higher and the pulse width was narrower, as well as almost equivalent output powers realized at a lower repetition rate. The variation of pulse interval between two oscillating wavelengths could also be achieved by moving the pump waist position inside the laser crystals.…”

Section: Resultscontrasting

confidence: 67%

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High-Power Dual-Wavelength Laser Based on Coaxial End-Pumping Scheme With Combination of Gain Media

et al. 2022

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A high-power dual-wavelength laser based on coaxial end-pumping scheme with composite Nd:YAG and Nd:YAP crystals was demonstrated. A theoretical model was built to analyze the thermal lens and accurately calculate the thermal focal length of laser gain medium pumped by a divergent beam. The experiment was carried out with a plane-convex cavity and a V-shape cavity for high-power output. The Q-switched laser produced 9.1 W pulsed dual-wavelength output (4.7 W at 1064 nm and 4.4 W at 1079 nm) at 25-kHz pulse repetition rate with synchronized pulse duration of 35 ns, corresponding to the optical-to-optical efficiency of 30.3%. The continuous-wave (CW) output power reached 15.5 W at laser diode (LD) pump power of 40 W, corresponding to a slope efficiency of 40.9% and an optical-to-optical conversion efficiency of 38.9%.The powers at two wavelengths were almost equivalent and the fluctuations were both less than 2.3%. To our best knowledge, it was the highest output power for stable CW dual-wavelength lasers based on diode-end-pumped configuration.

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Section: Resultscontrasting

confidence: 67%

“…The total output power and individual powers at 1064 nm and 1079 nm were 1.07%, 2.29% and 1.98% respectively. Compared with the previous results of a common dual-wavelength laser based on a single laser crystal [16], [17], the power stabilities have been significantly improved.…”

Section: Resultsmentioning

confidence: 57%

High-Power Dual-Wavelength Laser Based on Coaxial End-Pumping Scheme With Combination of Gain Media

et al. 2022

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“…[1][2][3][4] Pulsed lasers can be obtained by passively Q-switched or actively Q-switched modes. [5][6][7][8][9] Due to controllability and fast response speed, the actively Qswitched is the first choice for the pulsed laser. The electro-optic (EO) Q-switched and acousto-optic (AO) Q-switched are the most widely used modulators.…”

Section: Introductionmentioning

confidence: 99%

High‐Quality Acousto‐Optic Modulators with High Diffraction Efficiency, Polarization Extinction Ratio, and Small Insertion Loss Based on a Novel BaO–TeO₂–WO₃ Glass

Guo,

Hu,

Chen

et al. 2023

Advanced Materials

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The Q‐switched material and device have attracted extensive attention due to their irreplaceable role in pulsed lasers. In this paper, BaO‐TeO2‐WO3 glass (BTW glass) with sound velocity and sound attenuation coefficient of 3422 m −1s and 0.653 dB/cm is successfully selected and fabricated as acousto‐optic material. Both free‐spaced and fiber‐coupled acousto‐optic modulation devices based on BTW glass are designed and fabricated. The primary parameters such as diffraction efficiency, polarization extinction ratio, and insertion loss are comparable to or even surpassed that of commercial devices. A 1064 nm pulsed laser is successfully realized with a BTW glass free‐spaced acousto‐optic modulator. The maximum optical conversion efficiency, the narrowest pulse width, and the maximum single pulse energy of the 1064 nm pulsed laser are 32%, 54 ns, and 242.6 μJ, respectively. Both the device and laser performance indicate that the BTW glass is a remarkable acousto‐optic material.This article is protected by copyright. All rights reserved

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“…In recent years, orthogonally polarized dual-wavelength lasers have attracted much attention for their versatile applications in terahertz (THz) radiation generation, laser interferometry, precision metrology, and differential absorption lidar. Since 2009, orthogonally polarized dual-wavelength lasers have been successfully demonstrated in various rare-earthdoped laser crystals such as Nd:GdVO 4 [1], Nd:YLF (LiYF 4 ) [2][3][4][5][6][7], Nd:LuVO 4 [8,9], Nd:YAP (Al 5 O 12 Y 3 ) [10], Nd:YAG (Y 3 Al 5 O 12 ) [11,12], Nd:YVO 4 [13,14], Nd:LLF (LuLiF 4 ) [15], Nd:LMB (LaMgB 5 O 10 ) [16], Yb:KGW (KGd(WO 4 ) 2 ) [17], Yb:CGB (Ca 3 Gd 2 (BO 3 ) 4 ) [18], Yb:GMB (GdMgB 5 O 10 ) [19], and Tm,Ho:LLF [20]. * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

“…When the incident pump power was increased to 40 W, 10 W of dualwavelength laser output power was obtained at a pulse repetition frequency (PRF) of 30 kHz. However, since the gainto-loss balance of two lasers was realized via an etalon, the corresponding optical conversion efficiency was only 25% due to the additional loss introduced by the insertion etalon [6].…”

Section: Introductionmentioning

confidence: 99%

High-power and efficient orthogonally-polarized dual-wavelength Nd:YLF laser

Fan¹,

Sun²,

Wang³

et al. 2022

Laser Phys.

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We demonstrate an actively Q-switched orthogonally-polarized dual-wavelength laser at 1047.4 nm and 1053.4 nm with high average power and high efficiency. The gain competition between dual-wavelength lasers is effectively suppressed by using two Nd:YLF crystals as laser gain medium. Investigations concerning different resonator structures and pulse repetition frequency were conducted to achieve the best performance of this laser. Under the total incident pump power of 32.7 W, a maximum dual-wavelength laser output power of 13.4 W is obtained at the pulse repetition rate of 30 kHz, corresponding to an optical conversion efficiency of 41%. For 1047.4 nm and 1053.4 nm lasers, the maximum average output powers are as high as 7.6 W and 5.8 W, respectively, and they also demonstrate good output power stability and beam quality. This orthogonally-polarized dual-wavelength laser has significant practical applications in various fields, such as terahertz radiation generation, precision metrology, laser radar, and spectral analysis.

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Power scaling of an actively Q-switched orthogonally polarized dual-wavelength Nd:YLF laser at 1047 and 1053 nm

Cited by 26 publications

References 26 publications

High-Power Dual-Wavelength Laser Based on Coaxial End-Pumping Scheme With Combination of Gain Media

High-Power Dual-Wavelength Laser Based on Coaxial End-Pumping Scheme With Combination of Gain Media

High‐Quality Acousto‐Optic Modulators with High Diffraction Efficiency, Polarization Extinction Ratio, and Small Insertion Loss Based on a Novel BaO–TeO₂–WO₃ Glass

High-power and efficient orthogonally-polarized dual-wavelength Nd:YLF laser

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Power scaling of an actively Q-switched orthogonally polarized dual-wavelength Nd:YLF laser at 1047 and 1053 nm

Cited by 26 publications

References 26 publications

High-Power Dual-Wavelength Laser Based on Coaxial End-Pumping Scheme With Combination of Gain Media

High-Power Dual-Wavelength Laser Based on Coaxial End-Pumping Scheme With Combination of Gain Media

High‐Quality Acousto‐Optic Modulators with High Diffraction Efficiency, Polarization Extinction Ratio, and Small Insertion Loss Based on a Novel BaO–TeO2–WO3 Glass

High-power and efficient orthogonally-polarized dual-wavelength Nd:YLF laser

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Product

Resources

About

High‐Quality Acousto‐Optic Modulators with High Diffraction Efficiency, Polarization Extinction Ratio, and Small Insertion Loss Based on a Novel BaO–TeO₂–WO₃ Glass