Optical parametric oscillator pumped at ~1 µm with intracavity mid-IR distinction-frequency generation in OPGaAs

Output idler energies to the microjoule level are obtained with greatest conversion performance of 11% for that amplifier phase, and that is in excess of two times much better than the effects acquired using an analogous sample of your commonly spread material AgGaS 2 .

In addition to the compactness and benign running capabilities, it absolutely was the enormous overall flexibility in design and output properties that led towards the accomplishment of reliable-condition lasers over the past forty decades.

.. [Clearly show full abstract] 3rd-harmonic generation and parametric amplification with low-frequency pumping in periodically poled active nonlinear crystals are investigated. The Evaluation is completed for the situation of the periodically poled Nd:Mg:LiNbO3 crystal. Perspectives of employing periodically poled active nonlinear crystals in laser equipment with self-frequency conversion are talked about.

Self-referenced octave-wide subharmonic Hole optical parametric oscillator centered at 3 μm and pumped by an Er-fiber laser

induced oscillations during the idler wavelength of below 200MHz more than 300s; the limited-expression steadiness was lower than 3MHz

The era of tunable pico- and femtosecond mild pulses with parametric frequency conversion processes has captivated greater interest recently1. New crystal supplies, as BBO, LBO, and KTP, with excellent nonlinearity and high damage threshold at the moment are available, and pump lasers of enhanced security allow the responsible operation of optical parametric oscillators. Parametric units pumped ... [Exhibit full summary] both by cw modelocked lasers or by one rigorous ultrashort pulses have already been created. During this contribution parametric devices are reviewed that happen to be pumped by powerful pulse trains of some microseconds duration and repetition fees up to 50Hz.

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Vibrational spectra of Li-that contains nonlinear crystals and their software in THz radiation generation are mentioned. Employing an example of LiGaS2, the defect effect on spectroscopic traits is proven. Significant-temperature annealing in an appropriate ambiance enables a single to get rid of extended and place defects and also to Enhance the transparency. Strength composition and parameters of key issue click here defects such as anion vacancy (F-Centre) and cation antisite defect GaLi calculated from the primary principles concur nicely While using the experimental benefits.

The 3rd harmonic of CO2-laser radiation has become acquired by passing the laser beam via two CdGeAs2 crystals in tandem, with the very first crystal oriented for second-harmonic technology and the next for sum mixing. Making use of this technique, we have achieved a mean external conversion efficiency of one.

The defect chalcopyrite crystal HgGa2S4 continues to be employed inside a 1064-nm pumped optical parametric oscillator to generate Nonlinear crystals for optical parametric oscillators pumped by light-weight pulses of in the vicinity of IR lasers...

for that detection of molecular trace gasses. The oscillation threshold, output ability and security of The only resonant

A pulsed TEA CO2 laser was utilised to investigate the impact of pump radiation parameters (mode construction, wavelength, and pulse duration), focusing circumstances, absorption coefficient, and temperature around the efficiency of conversion into the 2nd harmonic and on angular dependences of period matching in ZnGeP2 crystals. Very good arrangement betweeen experimental and theoretical final results is observed. Browse extra

Change frequency mixing of strongly concentrated Gaussian beams in periodically poled LiNbO3 was investigated. The beams had been centered Within the crystal with no hurt. Mixing of cw and pulsed laser programs was utilized to attenuate the thermal lensing results within this crystal. A lower-electricity cw 1.064‐μm Nd:YAG laser beam was employed because the pump, whereas the signal beam arrived from the picosecond optical .