Details, Fiction and KYW Crystal

Details, Fiction and KYW Crystal

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is usually a outstanding materials that plays a crucial part in laser technological innovation. Its Key purpose should be to deliver ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.

The Yb:KYW crystal’s proficiency in light absorption at around 981 nm helps make the crystal compatible for diode pumping. It truly is even further Increased by its outstanding efficiency in this process, coupled with its minimal quantum defect.

Colour-coded reflectivity of a Bragg mirror for a functionality of wavelength and angle of the incident beam.

Optical layout of the laser with immediate pumping While using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output in the radiation, WP is a 50 percent-wave plate, CL is a collimating lens, FL is often a focusing lens, AE is really an active factor made from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 will be the cavity mirrors, OC is definitely the output mirror, and SAM is really a semiconductor saturable-absorber mirror.

Adhesion Take a look at Compliant with MIL-C-675C navy requirements, an adhesion exam concerned implementing a tape that fulfills LT-90 specs on to the lens film layer. The tape was affixed totally and after that eradicated vertically. This technique was carried out three times, leading to no blistering or peeling.

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Spatial construction in the beam as well as the corresponding intensity profiles I at the output of your laser.

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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to related sizes of such chemical features as website many as one hundred% of Yb-doping could be achieved.

Though ytterbium-doped laser gain media usually exhibit a small quantum defect, ytterbium-doped tungstates allow for notably modest values. One example is, a 1030-nm Yb:YAG laser would Commonly be pumped all over 940 nm, While Yb:KGW or Yb:KYW could possibly be most proficiently pumped about 981 nm.

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Talk to RP Photonics for just about any advice relating to tungstate lasers, which includes femtosecond lasers and superior-electricity lasers.