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We report on the self-guided operation of a singly resonant, thermally loaded CW OPO and its improved characteristics of mode quality and stability in the case of a MgO:PPLN crystal pumped at 532 nm.
We report stable, continuous-wave, mid-infrared optical-parametric-oscillator based on MgO:PPLN, pumped by Yb-fiber-laser, generating total power of 17.5W at 61% extraction efficiency, in TEM00(M2 Idier <1.24,M2 Signal<1.24) spatial mode with peak-peak idler power stability of 5% over 14 hours.
A Ho:LuLiF4 laser with an output power of 5.4W and slope efficiency of 76% at 2.1mm in-band pumped by a Tm fiber laser at 1.94mm is reported. Strategies for further increasing output power are considered.
We report on a high-average-power 888 nm diode-pumped passively mode-locked TEM00 Nd:YVO4 oscillator with adjustable pulse durations. From 45 to 15 W output power, we produced corresponding 32 to 12 ps long pulses without spatial hole burning.
Based on effective third-harmonic generation in two-section dual-period periodically-poled KTP crystal being placed inside the cavity of adhesive-free bond composite Nd:YAG laser, we generated coherent blue light with output power reaching 200 mW.
Based on a novel configuration of a dual-frequency laser system constructed from a Nd:YLF crystal, we have synchronized Q-switched laser pulses at 1047 nm and 1053 nm.
By optimizing the thermal properties of crystals, we report a femtosecond Cr:forsterite laser with a highest ever 1.4W output power, which is desired for many applications, including biomedical imaging, studies of fibers, and photonic devices.
Power scaling of end-pumped Nd:GdVO4 laser was realized by directly pumping and grown-together crystal. A maximum CW output power of 46.0W with M2 <; 1.1 was obtained. Effective A-O Q-switch operations were also reported.
Passive mode locking of the self-frequency doubling Yb:Ca4YO(BO3)3 pumped by a two-section distributed Bragg-reflector tapered-diode-laser is demonstrated. Pulses as short as 49 fs at 1050 nm are achieved for the E//Z polarization.
The generation of tunable mid-infrared picosecond laser radiation in the spectral range from 3-5μm by nonlinear frequency conversion in PPLN is reported. More than 3W output power at 3μm and 1.1W at 4.5μm were achieved.
We have observed unique polarization and azimuth-angle characteristics of THz waves, generated from anisotropic monoclinic GaTe when pump photon energy is below and above its bandgap, due to carrier unidirectional diffusion.
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