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We have achieved over 25 Kw CW operation with Yb:YAG thin disks, which was achieved under very high performance conditions, where slope optical-optical efficiencies approaching 70%, strong ASE suppression, and high heat removal rates were demonstrated simultaneously. Discussion of numerous interacting parameters will be presented with supporting data.
We propose the ldquolevel parametersrdquo lscr0 and lscr1 to quantify the concept of two-, three- and four-level laser, for comparing different laser media, operating temperatures, and choices of pump and laser transitions.
We developed a compact, narrow-linewidth diode-pumped Yb:YAG laser with volume Bragg grating delivering stable TEM00-mode Q-switched pulses at 1030 nm with average output of 1 W at 10 kHz and linewidth of < 0.08 nm.
A diode-pumped Nd:YAG oscillator has been developed with advanced packaging hardware, employing an unstable resonator cavity with a gaussian reflective output coupler, produces aperture-free TEM00 beams, and has completed space flight qualification testing.
We present a novel scheme for a compact and robust pulsed fiber-laser-pumped Ho:YLF oscillator and amplifier system, where the pump power transmitted by the oscillator is utilized to pump the amplifier.
We present for the first time a high-power Ho:YAG laser in-band pumped by a (AlGaIn)(AsSb) laser diode stack with 1910nm centre wavelength. Using a single 60mm long Ho:YAG rod in a simple and compact plane-plane resonator geometry a maximum laser output power of 40W and a slope efficiency of 57% with respect to the absorbed pump power were obtained. A beam quality of M2 ≪ 4 was found.
We demonstrate high energy picosecond pulses obtained directly from a thin-disk laser oscillator operating in ambient atmosphere. The average output power was up to 55 W at a repetition rate of 3.8 MHz.
Diode-pumped Kerr-lens mode-locked laser operation of Yb3+:Sc2O3 and Yb3+:Y2O3 combined ceramics has been achieved. Sub-60 fs pulses with the average power of 380 mW were obtained at the center wavelength of 1042 nm.
Diode-pumped Kerr-lens mode-locked laser operation of Yb3+:Sc2O3 and Yb3+:Y2O3 combined ceramics has been achieved. Sub-60 fs pulses with the average power of 380 mW were obtained at the center wavelength of 1042 nm.
We present for the first time a high-power Ho:YAG laser in-band pumped by a (AlGaIn)(AsSb) laser diode stack with 1910 nm centre wavelength. Using a single 60 mm long Ho:YAG rod in a simple and compact plane-plane resonator geometry a maximum laser output power of 40 W and a slope efficiency of 57% with respect to the absorbed pump power were obtained. A beam quality of M2 < 4 was found.
We demonstrate high energy picosecond pulses obtained directly from a thin-disk laser oscillator operating in ambient atmosphere. The average output power was up to 55 W at a repetition rate of 3.8 MHz.
Direct-diode-pumped crystalline Yb lasers are simple and efficient but low powered. We use reshaped diode bars and a polarization-coupled scheme to produce as much as 6.3 W in 100 to 225 fs pulses.
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