Rumored Buzz on KYW Crystal
Rumored Buzz on KYW Crystal
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We current a dual-crystal Yb:KGW laserthat iscapable to work for a Q-switched oscillator with output electrical power approximately 24 W and pulse size of twenty ns,or like a regenerative amplifier with output energy as much as 21 W and pulse length underneath two hundred fs right after compression of chirped pulses. Both of those lasers have outstanding beam quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals display robust peaks at 980 nm and 1030 nm, respectively, making sure economical Electrical power conversion and high performance in laser techniques.
Optical structure of the laser with direct pumping Using the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output with the radiation, WP is actually a 50 %-wave plate, CL is actually a collimating lens, FL is often a concentrating lens, AE is undoubtedly an Energetic aspect constructed from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC may be the output mirror, and SAM is a semiconductor saturable-absorber mirror.
Immediately after air drying and subsequent cleaning which has a cotton fabric soaked in Alcoholic beverages, the movie floor showed no signs of peeling or scratches.
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Spatial framework with the beam along with the corresponding depth profiles I at the output in the laser.
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW because of the very similar sizes of such chemical factors as much as a hundred% of Yb-doping might be reached.
While ytterbium-doped laser acquire media frequently show a small quantum defect, ytterbium-doped tungstates let for significantly small values. For instance, a 1030-nm Yb:YAG laser would Typically be pumped around 940 nm, Whilst Yb:KGW or Yb:KYW may very well be most successfully pumped all around 981 nm.
Li2WO4-WO3 flux was effectively used decreasing the growth temperature under 900 oC. In accordance with solitary crystal x-ray measurements, the crystal corresponds into the P2/n space team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is actually a outstanding substance that performs a significant purpose in laser technological know-how. Its Main function should be to deliver ultrashort pulses of light, get more info spanning just a few hundred femtoseconds.
Concurrently, a shorter laser wavelength is often received; it is possible to work that has a quantum defect nicely under 1%. Being a consequence, the heat generation may be so modest that this partly compensates the lower thermal conductivity.