KYW Crystal No Further a Mystery
KYW Crystal No Further a Mystery
Blog Article
In realistic phrases, the Yb:KYW crystal has discovered its specialized niche in significant-electricity laser applications as a result of its ability to deliver substantial Power ultrashort laser pulses though preserving a compact dimension. The interaction of its functions �?seamless ytterbium substitution, strong absorption attributes, ultrashort pulse technology and efficiency in Electricity conversion �?positions the Yb:KYW crystal as a cornerstone during the laser technological innovation, masking diverse fields ranging from scientific investigate to industrial apps.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is usually a outstanding content that plays a significant function in laser technology. Its Principal function would be to make ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
We present a dual-crystal Yb:KGW laserthat iscapable to operate as a Q-switched oscillator with output energy around 24 W and pulse size of 20 ns,or as a regenerative amplifier with output energy as much as 21 W and pulse duration down below two hundred fs just after compression of chirped pulses. Both of those lasers have exceptional beam excellent with beam parameter M2
Coloration-coded reflectivity of the Bragg mirror as being a functionality of wavelength and angle of the incident beam.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to related dimensions of such chemical elements as much as 100% of Yb-doping could possibly be reached. This exclusive characteristic permits ytterbium to take the location of yttrium with nearly no disruption for the crystal’s lattice.
Soon after air drying and subsequent cleansing with a cotton cloth soaked in Liquor, the movie surface showed no indications of peeling or scratches.
FIG. 1. Optical layout of a laser with direct pumping with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
Spatial structure from the beam and also the corresponding intensity profiles I within the output of your laser.
For tungstates, the ytterbium doping focus can be quite substantial with no sizeable quenching as the replaced ions have an exceedingly very similar ion radius, and also the inter-ion distance is pretty substantial.
Nonetheless, the moment Nd3+:YAG became commercially offered, the desire in CaWO4 dropped sharply. In later several years, sure other tungstate crystals started to appeal to a lot of consideration.
The thermal conductivity of prevalent double tungstates is with the buy to three–4 W/(K m) �?which is not bad as opposed with other laser crystals (While numerous times below for YAG), and pretty significant in comparison with the thermal conductivity of normal Eyeglasses.
Li2WO4-WO3 flux was correctly applied lowering The expansion temperature underneath 900 oC. Based on one crystal x-ray measurements, the crystal corresponds for the P2/n Room team.
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