5 Easy Facts About KYW Crystal Described
5 Easy Facts About KYW Crystal Described
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely huge in contrast with that of Yb:YAG. This enables for vast wavelength tunability and for Considerably shorter pulse durations from method-locked lasers. Values effectively under one hundred fs are actually accomplished with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is really a impressive product that plays a vital role in laser technological innovation. Its Most important function should be to produce ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
We present a twin-crystal Yb:KGW laserthat iscapable to work like a Q-switched oscillator with output ability approximately 24 W and pulse duration of 20 ns,or like a regenerative amplifier with output electricity as much as 21 W and pulse length below 200 fs just after compression of chirped pulses. Both lasers have superb beam top quality with beam parameter M2
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Optical format of a laser with direct pumping Using the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output from the radiation, WP can be a 50 %-wave plate, CL is usually a collimating lens, FL is usually a concentrating lens, AE is definitely an Lively factor created from an Yb:KYW crystal, DM is often a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC will be the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.
Immediately after air drying and subsequent cleansing that has a cotton cloth soaked in Alcoholic beverages, the film surface area confirmed no indications of peeling or scratches.
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Tungstates are inclined to acquire high Raman coefficients (�?Raman scattering). Consequently, they're able to crank out significant Raman achieve at reasonable optical intensities. It is achievable to utilize the laser crystal alone for a Raman converter.
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW a result of the related measurements of these chemical elements up to a hundred% of Yb-doping may very well be reached.
Though ytterbium-doped laser attain media commonly exhibit a little quantum defect, ytterbium-doped tungstates make it possible for for specifically more info smaller values. For instance, a 1030-nm Yb:YAG laser would Commonly be pumped about 940 nm, While Yb:KGW or Yb:KYW could be most proficiently pumped all-around 981 nm.
Li2WO4-WO3 flux was properly used lessening The expansion temperature down below 900 oC. According to single crystal x-ray measurements, the crystal corresponds to the P2/n space group.
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