KYW Crystal Secrets
KYW Crystal Secrets
Blog Article
In realistic phrases, the Yb:KYW crystal has discovered its specialized niche in significant-electric power laser programs because of its capacity to create high Electrical power ultrashort laser pulses whilst preserving a compact sizing. The interaction of its options �?seamless ytterbium substitution, potent absorption traits, ultrashort pulse generation and efficiency in Vitality conversion �?positions the Yb:KYW crystal as being a cornerstone from the laser technological innovation, covering numerous fields starting from scientific investigate to industrial apps.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, can be a amazing materials that plays an essential purpose in laser engineering. Its Principal purpose would be to make ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
The Yb:KYW crystal’s proficiency in gentle absorption at all over 981 nm helps make the crystal compatible for diode pumping. It really is further more Improved by its impressive efficiency in this method, coupled with its small quantum defect.
The absorption and emission spectra of Yb:KYW Crystals Show powerful peaks at 980 nm and 1030 nm, respectively, guaranteeing effective Electrical power conversion and substantial effectiveness in laser systems.
This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers owning fiber output. To prevent spectral narrowing all through amplification as well as the corresponding lengthening with the amplified pulse when it is actually compressed, a combination of two Yb:KYW crystals had been made use of, Using the spectral maxima from the amplification shifted relative to each other and with spectral profiling in the amplified radiation.
Prior to the event of Nd:YAG, Nd3+:CaWO4 was a very important uncommon-earth-doped laser achieve medium. It had been in reality Utilized in the main constantly functioning crystal laser.
FIG. one. Optical format of the laser with direct pumping While using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
Tungstates are likely to possess significant Raman coefficients (�?Raman scattering). Hence, they are able to deliver considerable Raman achieve at moderate optical intensities. It is feasible to use the laser crystal alone as being a Raman converter.
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW a result of the related measurements of these chemical factors around 100% of Yb-doping could be obtained.
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Li2WO4-WO3 flux was effectively utilized cutting down The expansion temperature beneath 900 oC. As outlined by single crystal x-ray measurements, the crystal corresponds for the P2/n Place team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to check here its counterpart Yb:KGW, is usually a remarkable product that performs a crucial position in laser know-how. Its primary operate is always to create ultrashort pulses of light, spanning just a few hundred femtoseconds.
Simultaneously, a shorter laser wavelength could be acquired; it is achievable to function that has a quantum defect perfectly below 1%. For a consequence, the warmth generation may be so smaller that this partly compensates the decreased thermal conductivity.