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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is a extraordinary materials that performs a very important role in laser technological innovation. Its Most important function is usually to crank out ultrashort pulses of sunshine, spanning just some hundred femtoseconds.

The Yb:KYW crystal’s proficiency in mild absorption at close to 981 nm makes the crystal compatible for diode pumping. It is actually further more enhanced by its extraordinary efficiency in this process, coupled with its very low quantum defect.

FIG. 4. Autocorrelation purpose of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Energetic component for an output electrical power of 700 mW. The width of

Optical layout of a laser with direct pumping While using the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output with the radiation, WP is a 50 %-wave plate, CL can be a collimating lens, FL is usually a concentrating lens, AE is undoubtedly an Energetic ingredient created from an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC would be the output mirror, and SAM is a semiconductor saturable-absorber mirror.

Adhesion Test Compliant with MIL-C-675C navy expectations, an adhesion test associated implementing a tape that fulfills LT-ninety specs on to the lens movie layer. The tape was affixed completely after which you can removed vertically. This process was performed three times, causing no blistering or peeling.

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Spatial construction from the beam along with the corresponding intensity profiles I on the output with the laser.

For tungstates, the ytterbium doping concentration can be very high without sizeable quenching because the changed ions have an exceedingly similar ion radius, plus the inter-ion length is comparatively massive.

High-electrical power repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical applications

The thermal conductivity of prevalent double tungstates is of your order to three–four W/(K m) �?which isn't poor when compared with other KYW Crystal laser crystals (While several instances less than for YAG), and relatively substantial when compared While using the thermal conductivity of common Eyeglasses.

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