Everything about KYW Crystal
Everything about KYW Crystal
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This exclusive characteristic of ultrafast pulses allows nonlinear optical conversation with tissue at low In general exposure, and drives purposes including deep-tissue multiphoton microscopy and higher-precision eye surgical treatment
The Yb:KYW crystal’s proficiency in mild absorption at around 981 nm would make the crystal compatible for diode pumping. It truly is additional Increased by its amazing efficiency in this process, coupled with its small quantum defect.
Colour-coded reflectivity of the Bragg mirror for a perform of wavelength and angle of the incident beam.
Optical layout of the laser with immediate pumping Using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output from the radiation, WP is a half-wave plate, CL can be a collimating lens, FL is usually a concentrating lens, AE is really an Lively aspect made out of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC could be the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
Before the event of Nd:YAG, Nd3+:CaWO4 was a very important scarce-earth-doped laser get medium. It was in actual fact Utilized in the very first consistently working crystal laser.
Raman, luminescence and transmission spectra reveal optical functions owing into the existence of thulium ions, and thus the resources could possibly be more studied while in the scope of laser and luminescence purposes.
A higher brightnessQ-switched oscillator and regenerative amplifier determined by a twin-crystal Yb:KGW laser
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Nevertheless, after Nd3+:YAG became commercially readily available, the interest in CaWO4 dropped sharply. In later on years, selected other tungstate crystals here began to draw in lots of awareness.
While ytterbium-doped laser get media frequently show a little quantum defect, ytterbium-doped tungstates permit for notably compact values. For instance, a 1030-nm Yb:YAG laser would Typically be pumped all over 940 nm, While Yb:KGW or Yb:KYW may very well be most competently pumped all-around 981 nm.
Li2WO4-WO3 flux was successfully utilized lessening the growth temperature under 900 oC. In keeping with single crystal x-ray measurements, the crystal corresponds on the P2/n House team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at room temperature have been calculated. The emission spectrum and life span from the 3 F 4 energized point out were established. Working with conventional and modified Judd–Ofelt theories, the depth parameters and also the radiative lifetimes had been calculated and very good arrangement Along with the experimental success was attained for both of those theories.
Ask RP Photonics for virtually any tips concerning tungstate lasers, together with femtosecond lasers and substantial-energy lasers.