Diode-pumped doubly Q-switched Nd:GdVO4 laser

Wang, G.; Liu, S.; Li, L.; Liu, M.; Liu, J.

doi:10.1134/s1054660x0712002x

Cited by 12 publications

(8 citation statements)

References 13 publications

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“…4, showing that peak power of the doubly Q-switched laser is higher than that of passively Q-switched laser, but lower than that of AO Qswitched laser. These phenomena were also observed in [4]. The threshold powers and laser parameters obtained at the incident pump power of 3 W are shown in Table 1, where f is repetition rate, P th is threshold power, P av is average output power, t p is pulse width, and P peak is peak power.…”

Section: Resultsmentioning

confidence: 67%

Experimental study on pulse characteristics of diode-pumped Q-switched Nd:KGW laser

Liu

et al. 2009

Laser Phys. Lett.

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Diode-pumped acoustic-optical (AO) Q-switched, passively Q-switched, and double Q-switched Nd:KGW lasers were realized, respectively. Their pulse characteristics were researched. Experiments prove double Q-switching laser can generate a symmetric and shorter pulse when compared with purely AO and passive Q-switching. The double Q-switched laser pulse width of 37.7 ns has been achieved at the incident pump power of 3 W.

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Section: Resultsmentioning

confidence: 67%

Experimental study on pulse characteristics of diode-pumped Q-switched Nd:KGW laser

Liu

et al. 2009

Laser Phys. Lett.

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“…As mentioned previously, compared with AO Q-switched lasers, passive Q-switched lasers can produce shorter pulses, but the pulse repetition rate is not stable, and the pulse peak power is low. To address these issues, a short pulse with high peak power and stable repetition rate can be generated by inserting an AO device and a saturable absorber Cr:YAG into the resonator for double Q-switching [ 22 , 23 , 24 , 25 , 26 , 27 ]. To obtain a stable Nd:YAG laser with a wavelength of 1064 nm, single-sided pumping with an LD having a wavelength of 808 nm was performed using an AO Q-switch device and a Cr:YAG saturated absorber.…”

Section: Methodsmentioning

confidence: 99%

Fully Customized Photoacoustic System Using Doubly Q-Switched Nd:YAG Laser and Multiple Axes Stages for Laboratory Applications

Jung

Choi

Choo

et al. 2022

Sensors

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We developed a customized doubly Q-switched laser that can control the pulse width to easily find weak acoustic signals for photoacoustic (PA) systems. As the laser was constructed using an acousto-optic Q-switcher, in contrast to the existing commercial laser system, it is easier to control the pulse repetition rate and pulse width. The laser has the following control ranges: 10 Hz–10 kHz for the pulse repetition rate, 40–150 ns for the pulse width, and 50–500 μJ for the pulse energy. Additionally, a custom-made modularized sample stage was used to develop a fully customized PA system. The modularized sample stage has a nine-axis control unit design for the PA system, allowing the sample target and transducer to be freely adjusted. This makes the system suitable for capturing weak PA signals. Images were acquired and processed for widely used sample targets (hair and insulating tape) with the developed fully customized PA system. The customized doubly Q-switched laser-based PA imaging system presented in this paper can be modified for diverse conditions, including the wavelength, frequency, pulse width, and sample target; therefore, we expect that the proposed technique will be helpful in conducting fundamental and applied research for PA imaging system applications.

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“…Lasers emitting in the blue range are useful in many fields, such as medicine, lithography, communications, display or biology. Classical wavelengths of frequency doubled solid state blue lasers are 473, 457, 456, and 458 nm [21][22][23][24][25][26][27][28][29][30]. These lasers are efficient and powerful, and it could be interesting to extend these sources to other wave lengths, in particular to deeper blue.…”

Section: Introductionmentioning

confidence: 99%

494 nm blue laser based on sum-frequency mixing of diode pumped Nd3+ lasers

Zou

Wang

2011

Laser Phys.

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We report for the first time a continuous wave (CW) blue radiation at 494 nm by intracavity sum frequency generation of 912 nm Nd:GdVO 4 laser and 1079 nm Nd:YAlO 3 (Nd:YAP) laser. Using type I crit ical phase matching LiB 3 O 5 (LBO) crystal, 494 nm blue laser was obtained by 912 and 1079 nm intra cavity sum frequency mixing, and output power of 179 mW was demonstrated. At the output power level of 179 mW, the output power stability is better than 3.5% and laser beam quality M 2 factor is 1.21.

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Diode-pumped doubly Q-switched Nd:GdVO4 laser

Cited by 12 publications

References 13 publications

Experimental study on pulse characteristics of diode-pumped Q-switched Nd:KGW laser

Experimental study on pulse characteristics of diode-pumped Q-switched Nd:KGW laser

Fully Customized Photoacoustic System Using Doubly Q-Switched Nd:YAG Laser and Multiple Axes Stages for Laboratory Applications

494 nm blue laser based on sum-frequency mixing of diode pumped Nd3+ lasers

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