An Unbiased View of KYW Crystal
An Unbiased View of KYW Crystal
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The get bandwidth e.g. of Yb:KGW and Yb:KYW is very significant as opposed with that of Yb:YAG. This allows for huge wavelength tunability and for Considerably shorter pulse durations from mode-locked lasers. Values properly underneath 100 fs are actually reached with passive manner locking.
The comparison with glasses is appropriate Because the huge obtain bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in light-weight absorption at all-around 981 nm would make the crystal well suited for diode pumping. It's more enhanced by its extraordinary efficiency in this method, coupled with its lower quantum defect.
The absorption and emission spectra of Yb:KYW Crystals display strong peaks at 980 nm and 1030 nm, respectively, ensuring successful Power conversion and large efficiency in laser devices.
This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by effective linear arrays of semiconductor injection lasers acquiring fiber output. To circumvent spectral narrowing throughout amplification as well as the corresponding lengthening in the amplified pulse when it is actually compressed, a combination of two Yb:KYW crystals were applied, Along with the spectral maxima of the amplification shifted relative to each other and with spectral profiling of your amplified radiation.
The monoclinic crystal structures results in a organic birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.
FIG. one. Optical structure of a laser with direct pumping Using the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
Tungstates are inclined to have substantial Raman coefficients (�?Raman scattering). Therefore, they could deliver considerable Raman achieve at average optical intensities. It can be done to use the laser crystal itself like a Raman click here converter.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW mainly because of the very similar measurements of such chemical elements nearly a hundred% of Yb-doping may very well be reached.
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This tandem of characteristics has considerably-achieving implications, particularly in the development of compact however powerfull lasers.
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Check with RP Photonics for just about any suggestions regarding tungstate lasers, such as femtosecond lasers and large-electrical power lasers.