KGW Crystal Can Be Fun For Anyone
KGW Crystal Can Be Fun For Anyone
Blog Article
PDF Be sure to pick a structure to save. Through the use of this services, you concur that you'll only hold articles for private use, and is not going to overtly distribute them via Dropbox, Google Drive or other file sharing expert services Be sure to affirm that you acknowledge the terms of use. Cancel
PDF Remember to find a structure to avoid wasting. By making use of this service, you concur that you'll only keep material for personal use, and won't overtly distribute them through Dropbox, Google Drive or other file sharing expert services Please confirm that you choose to settle for the conditions of use. Terminate
We employed a transmission grating (TG) like a dispersive part in our stretcher and compressor. A compact configuration was adopted, in which the stretcher and the compressor shared just one grating much like that in Ref.
In conclusion, we demonstrated that undoped scintillator crystals: BGO, GGG, YSO, LSO and LYSO are successful nonlinear elements for broadband SC generation in the near-infrared and short-wave infrared spectral ranges, when pumped by a hundred and eighty fs elementary harmonic pulses from an amplified Yb:KGW laser. YSO, LSO and LYSO manufactured two octave-spanning SC spectra, which Look at to SC spectra generated in YAG. These supplies exhibit fairly similar performances to YAG also with regards to threshold and ideal pump pulse energies for SC era. Nevertheless, for what fears the likelihood to operate at significant laser pulse repetition charge, YSO, LSO and LYSO present long lasting operation only at ten kHz and promptly degrade (inside of a few minutes) at twenty kHz. Other than the rather lower SC technology threshold (169 nJ), GGG demonstrated superb performance traits in the shorter-wave infrared Together with the exceptional pump pulse Vitality of 464 nJ, that is two moments lessen than in YAG: the largest pink-shifted spectral broadening and the highest spectral energy density, outperforming KGW and YAG crystals in that facet.
The monoclinic crystal constructions brings about a natural birefringence, assisting to stay clear of thermally induced polarization rotation and depolarization reduction.
]. Etalon insertion would produce added loss, on the other hand, time-to-time optimization would introduce the chance of component hurt and instability to the procedure. A nonlinear regenerative amplifier could specifically provide pulses with a period as little as ninety seven fs and a spectral bandwidth of 19 nm[
Later on, We're going to adopt a laser seed that has a broader spectral bandwidth and implement an acousto-optical programmable dispersive filter to modulate the seed’s spectrum to generate entire use in the acquire bandwidth of our regenerative amplifier.
The black line denotes the configuration with the crystals positioned in exactly the same orientation, though the red line is underneath the configuration of crystals put in orthogonal orientation.
]. This technique was determined by the fact that the spectral emission cross-part curves differ from one another when laser polarization is paralleled to the several optical axis of Yb-doped double tungstates[
Meanwhile, to ensure continued guidance, we've been exhibiting the website without kinds and JavaScript.
Despite the fact that BGO, GGG, YSO, LSO and LYSO from time to time function laser hosts37, They can be primarily recognized as efficient scintillators, whose scintillation Homes are examined really well38. Having said that, the nonlinear optical Qualities of those crystals and so their possible to serve as nonlinear elements for SC technology in particular, and some other experiments regarding nonlinear propagation of powerful femtosecond laser pulses, keep on being very poorly studied. Up to now, GGG, LT23,twenty five and YSO24 ended up only sketchily examined for SC era with Ti:sapphire laser pumping, on the other hand, to the ideal of our awareness, Not one of the investigated products ended up examined with Yb-laser pumping, specifically for more info what worries their overall performance at extremely large (tens to numerous kHz) pulse repetition prices.
Tungstates tend to acquire superior Raman coefficients (�?Raman scattering). Consequently, they are able to create significant Raman attain at moderate optical intensities. It is feasible to use the laser crystal itself as being a Raman converter.
This short article has become cited by the next publications. This list is created based upon knowledge provided by Crossref.
]. The twin-crystal configuration lowers the thermal load on Each individual crystal when preserving a higher attain, and facilitates the compensation of every one’s thermal lensing result. Therefore, the laser cavity can perform with a sizable security variety above the thermal lensing effect variation.