New Step by Step Map For KGW Crystal
New Step by Step Map For KGW Crystal
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The get bandwidth e.g. of Yb:KGW and Yb:KYW is very massive compared with that of Yb:YAG. This permits for huge wavelength tunability and for A great deal shorter pulse durations from manner-locked lasers. Values effectively beneath 100 fs have already been obtained with passive mode locking.
In combination with its use as a Raman crystal, KGW is also Employed in other optical purposes, for example in laser devices and as being a scintillator in healthcare imaging.
-switched manner. The bandwidth during the orthogonal orientation was clearly A lot broader. The calculated Fourier change restricted pulse period was as brief as sub-a hundred and sixty fs. Under the configuration the place The 2 crystals have been placed in the same orientation, Together with the seed enter, the amplified pulse bandwidth was only three nm with one hundred eighty μJ Electricity when it broke the dichroic mirrors.
The comparison with glasses is suitable For the reason that significant acquire bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
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Situation Experiments of selected crucial systems invented or co-invented by American Factors in just the 1st 20 years of the century
Request RP Photonics for virtually any information relating to tungstate lasers, such as femtosecond lasers and higher-ability lasers.
The threshold energy for SC generation (hbox E _ textrm th ) was described as being the pump pulse Electrical power, exactly where the blue-shifted spectral broadening speedily settles to a particular Slice-off wavelength that remains Nearly frequent Despite additional improve in the pump pulse Strength. The the best possible Power (hbox E _textrm opt ), was described since the pump pulse Strength, which produces the largest crimson-shifted spectral broadening ahead of the onset of periodic modulation from the SC spectrum on account of filament refocusing.
The Martinez stretcher stretched the seed pulses to ~250 ps with 1600 grooves/mm grating. The enter from the stretcher (incident angle: 52°) Which on the compressor incident at the grating were being from the exact aspect; that's why, a slight angular tuning from the grating could be built to obtain the ideal compression final result. Within the compressor, the input angle on the grating and the distance amongst the translation stage (S1) as well as transmission grating (TG) were built to compensate with the stretcher dispersion and all dispersion released with the components.
-switched laser output under the two crystal placement configurations. The black line denotes the configuration Together with here the crystals placed in precisely the same orientation, whilst the red line is under the configuration of crystals put in orthogonal orientation.
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