New Step by Step Map For KGW Crystal
New Step by Step Map For KGW Crystal
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Although ytterbium-doped laser gain media usually show a little quantum defect, ytterbium-doped tungstates make it possible for for particularly little values. For example, a 1030-nm Yb:YAG laser would Commonly be pumped about 940 nm, While Yb:KGW or Yb:KYW could possibly be most efficiently pumped around 981 nm.
For some applications, tungstates supply a mix of a variety of helpful Attributes. In particular for passive mode locking, ytterbium-doped double tungstates are often excellent to other media regarding The mix of substantial gain bandwidth, huge cross-sections, and comparatively excellent thermal Attributes �?While in Just about every unique willpower improved supplies might be observed.
Figure seven reveals the calculated dispersion compensation result. The compressed pulse length is all over 185 fs in the event the length of enter pulses is one hundred fifty fs. The discrepancy amongst them will likely be noticeably lowered with an extended pulse enter since uncompensated higher-order dispersion issues considerably less for for a longer time pulses. This configuration was utilized to display the compressibility of our amplified pulses at the preliminary stage of our complete method. In the future we might adopt a grating-pair compressor for high-quality payment for top-order dispersion.
The datasets used and/or analysed in the course of the current review accessible in the corresponding writer on fair request.
]. Etalon insertion would bring on extra decline, having said that, time-to-time optimization would introduce the risk website of ingredient injury and instability towards the system. A nonlinear regenerative amplifier could immediately deliver pulses that has a period as low as ninety seven fs and a spectral bandwidth of 19 nm[
One other was put with its Np -axis parallel With all the s-polarized direction. A comparison was produced between a configuration with the crystals placed in the exact same orientation (
Comparison of spectral energy densities of supercontinua made from the situations of optimal pumping while in the investigated resources.
Thermal outcomes are drastically more compact in KGW. This combined with the higher hurt threshold make the crystal a fantastic applicant for ability scaling. Comparing Ba(NO3)2 and KGW for Raman application Ba(NO3)2 are simpler in case of ns pulses and KGW �?in case of ps pulses.
Determine four Beam radius variation on the two crystals although changing the focal size on the thermal lensing effect.
These products may be used for frequency conversion in lasers for extending of tuning assortment. SRS in crystals is compatible with latest all-reliable-state technologies and provides a quite simple, compact means of frequency conversion.
Tungstates are likely to obtain significant Raman coefficients (�?Raman scattering). Therefore, they will deliver significant Raman get at reasonable optical intensities. It is feasible to use the laser crystal alone as a Raman converter.
Figure four Beam radius variation on the two crystals even though transforming the focal size of the thermal lensing influence.
The two energies are marked by the dashed strains as well as their values are labeled inside the plots. The identical options ended up also observed in KGW and YAG crystals, whose spectral broadening dynamics are shown for your comparison in Fig. 4.