KYW Crystal No Further a Mystery

KYW Crystal No Further a Mystery

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, can be a extraordinary material that performs a very important job in laser technologies. Its Major function is to create ultrashort pulses of light, spanning only a few hundred femtoseconds.

We present a twin-crystal Yb:KGW laserthat iscapable to work for a Q-switched oscillator with output power approximately 24 W and pulse duration of twenty ns,or as a regenerative amplifier with output power around 21 W and pulse duration down below 200 fs immediately after compression of chirped pulses. Each lasers have great beam high quality with beam parameter M2

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Optical structure of a laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output on the radiation, WP is usually a 50 percent-wave plate, CL is really a collimating lens, FL is actually a focusing lens, AE is surely an active component constructed from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC is definitely the output mirror, and SAM is often a semiconductor saturable-absorber mirror.

Just before the event of get more info Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser get medium. It absolutely was in actual fact used in the 1st continuously working crystal laser.

FIG. one. Optical format of a laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output

A significant brightnessQ-switched oscillator and regenerative amplifier depending on a twin-crystal Yb:KGW laser

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... Not just the posture of crystal in the cavity and also the amplification axis of crystal has an effect on the laser operation considerably, since the absorption and emission cross sections with the crystal are very diverse in accordance with the orientation from the crystal.

While ytterbium-doped laser acquire media generally exhibit a small quantum defect, ytterbium-doped tungstates permit for specially little values. One example is, a 1030-nm Yb:YAG laser would Commonly be pumped all-around 940 nm, While Yb:KGW or Yb:KYW may very well be most successfully pumped all-around 981 nm.

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