Results 41 to 50 of about 52,197 (248)
Effect of Lower-Level Relaxation on the Pulse Generation Performance of Q-Switched Nd:YAG Laser
PhotonicsWhen analyzing and designing Q-switched Nd:YAG lasers, the impact of lower-energy-level relaxation on the pulse waveform is often ignored. This approximation typically does not result in significant deviations when the laser pulse duration is much longer
Fuqiang Ma +5 more
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Iraqi Journal of Physics, 2019 Q-switched lasers widely used in management skin diseases and sometimes its effect may be inadequate or associated with cytotoxicity. The current study aimed to investigate the effect of Q-switched Nd:YAG laser upon cellular elements using in vitro ...
Nida Hassan Ali
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High-Repetition-Rate Q-Switched Holmium Fiber Laser
IEEE Photonics Journal, 2012 Pulses of 118 nJ at the repetition rate of 170 kHz and central wavelength of 2097 nm have been produced by holmium fiber laser Q-switched by carbon nanotube saturable absorber.
A. Yu. Chamorovskiy +4 more
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Yttrium oxide as a Q-switcher for the near-infrared erbium-doped fiber laser
Nanophotonics, 2020 Yttrium oxide (Y2O3) has been widely used in metal-reinforced composites, microelectronics, waveguide lasers, and high-temperature protective coatings because of its good physical and photoelectric properties.
Liu Mengli +6 more
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Bistability and pulsations in semiconductor lasers with inhomogeneous current injection [PDF]
, 1982 Bistability and pulsation at microwave frequencies are observed in CW GaAs semiconductor lasers with inhomogeneous current injection. Inhomogeneous current injection is achieved with a segmented contact structure.
Harder, Christoph +2 more
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A 1625 nm Q‐Switched All‐Fiber Laser
Advanced Photonics Research, 2022 A Q‐switched all‐fiber Er‐doped laser operated at a wavelength up to 1625 nm is proposed and demonstrated. A self‐developed, element hybridization (Al, Ge, La, P, and Er in the core, Si and P in the cladding region) glass fiber with gain extended to U ...
Huihui Cheng +7 more
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Genetic algorithm-based control of birefringent filtering for self-tuning, self-pulsing fiber lasers
, 2017 Polarization-based filtering in fiber lasers is well-known to enable spectral tunability and a wide range of dynamical operating states. This effect is rarely exploited in practical systems, however, because optimization of cavity parameters is non ...
Kelleher, E. J. R., Woodward, R. I.
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Clinical, Cosmetic and Investigational Dermatology, 2023 Maha Fathy Elmasry,1 Moemena Maher Fathi Khalil,2 Ashraf Badawi,3,4 Naglaa Sameh Zaki,1 Aya Fahim1 1Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt; 2Department of Dermatology, Quesna Central Hospital, Menofia, Egypt ...
Elmasry MF +4 more
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High-Peak-Power Acousto-Optically Q-Switched Er:Y2O3 Ceramic Laser at ∼2.7 μm
IEEE Photonics Journal, 2017 We report on a high-peak-power acousto-optically Q-switched Er:Y2O3 ceramic laser operating at room temperature. Stable pulses with a duration of 41–190 ns (FWHM) are generated at approximately 2.7 μm with the repetition rate varying from 0.
X. J. Ren +5 more
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Q-switched neodymium-doped phosphate glass fibre lasers
, 1993 The operation of a short-pulse, Q-switched, neodymium-doped fiber laser operating at 1.054µm is described experimentally and theoretically. The laser is efficiently pumped with a single-stripe AlGaAs laser diode and emits >1kW pulses.
Jedrzejewski, K.P. +2 more
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