Not known Details About KGW Crystal
Not known Details About KGW Crystal
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]. A result of the small storage time, Ti:sapphire is usually pumped by frequency-doubled Nd:YAG or Nd:glass reliable-state lasers, which results in a bulky and complex method with superior Charge. In contrast with typical CPA laser units, the OPCPA process can get a shorter pulse duration and the next peak power.
Even though ytterbium-doped laser gain media frequently exhibit a little quantum defect, ytterbium-doped tungstates allow for for especially modest values. For instance, a 1030-nm Yb:YAG laser would normally be pumped all around 940 nm, whereas Yb:KGW or Yb:KYW may be most proficiently pumped all over 981 nm.
We applied a transmission grating (TG) to be a dispersive part within our stretcher and compressor. A compact configuration was adopted, in which the stretcher and also the compressor shared one particular grating just like that in Ref.
In summary, we demonstrated that undoped scintillator crystals: BGO, GGG, YSO, LSO and LYSO are successful nonlinear components for broadband SC technology in the in close proximity to-infrared and quick-wave infrared spectral ranges, when pumped by one hundred eighty fs fundamental harmonic pulses from an amplified Yb:KGW laser. YSO, LSO and LYSO manufactured two octave-spanning SC spectra, which Assess to SC spectra developed in YAG. These materials show quite related performances to YAG also when it comes to threshold and exceptional pump pulse energies for SC technology. Even so, for what considerations the possibility to work at significant laser pulse repetition fee, YSO, LSO and LYSO demonstrate durable Procedure only at ten kHz and swiftly degrade (in a couple of minutes) at twenty kHz. Aside from the rather lower SC era threshold (169 nJ), GGG shown superb effectiveness characteristics in the short-wave infrared With all the optimal pump pulse Strength of 464 nJ, which happens to be two times lessen than in YAG: the biggest crimson-shifted spectral broadening and the highest spectral Vitality density, outperforming KGW and YAG crystals in that aspect.
The datasets applied and/or analysed through The existing review readily available through the corresponding creator on sensible ask for.
For tungstates, the ytterbium doping concentration can be extremely substantial without having significant quenching since the changed ions have an extremely identical ion radius, as well as inter-ion length is comparatively big.
Down the road, We'll undertake a laser seed having more info a broader spectral bandwidth and implement an acousto-optical programmable dispersive filter to modulate the seed’s spectrum for making entire use of the achieve bandwidth of our regenerative amplifier.
KGW (potassium gadolinium tungstate) is often a crystal that is commonly applied as being a Raman crystal in Raman spectroscopy. It's really a colorless, clear crystal that includes a large Raman scattering performance and a solid Raman spectrum, rendering it suited to A variety of Raman purposes.
Check with RP Photonics for virtually any guidance concerning tungstate lasers, such as femtosecond lasers and significant-power lasers.
The 2-pump laser could offer you up to one hundred twenty W electricity. Somewhere around 60% of the most pump power was utilized inside our experiment considering the reduced effectiveness on the dichroic mirrors. Under this twin-crystal configuration, our cavity supports a one hundred W pump electric power enter, as discussed in Part 2.two. Large-quality dichroic mirrors will be utilised Down the road, and laser pulses will be stretched to an extended pulse period.
These materials can be utilized for frequency conversion in lasers for extending of tuning vary. SRS in crystals is appropriate with existing all-good-state know-how and provides a very simple, compact signifies of frequency conversion.
KGW has a solid Raman spectrum that extends from your ultraviolet into the close to infrared, which makes it useful for A selection of apps. The crystal can be utilized for a reference material for Raman spectroscopy, as well as a sample for researching Raman scattering while in the good condition.
Figure eight Intra-cavity pulse amplification approach monitored by an oscilloscope. The heart beat underwent an unsaturated amplification due to mirror harm limitation.
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