New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The comparison with glasses is suitable Considering that the huge achieve bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the pulse
Colour-coded reflectivity of the Bragg mirror as a operate of wavelength and angle of the incident beam.
This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with direct longitudinal pumping by highly effective linear arrays of semiconductor injection lasers getting fiber output. To stop spectral narrowing for the duration of amplification and also the corresponding lengthening from the amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals ended up applied, Using the spectral maxima with the amplification shifted relative to each other and with spectral profiling in the amplified radiation.
Right after air drying and subsequent cleaning using a cotton fabric soaked in Alcoholic beverages, the movie surface confirmed no signs of peeling or scratches.
FIG. one. Optical layout of a laser with direct pumping Together with the radiation of read more semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output
A higher brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping concentration can be quite significant without significant quenching because the changed ions have a really identical ion radius, and the inter-ion length is relatively massive.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW a result of the identical dimensions of such chemical aspects around a hundred% of Yb-doping may very well be accomplished.
Even though ytterbium-doped laser gain media commonly exhibit a small quantum defect, ytterbium-doped tungstates permit for specifically modest values. One example is, a 1030-nm Yb:YAG laser would Generally be pumped all over 940 nm, Whilst Yb:KGW or Yb:KYW can be most effectively pumped all around 981 nm.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at home temperature were measured. The emission spectrum and lifetime of your 3 F four excited point out were identified. Applying regular and modified Judd–Ofelt theories, the depth parameters along with the radiative lifetimes have been calculated and superior settlement While using the experimental outcomes was obtained for both equally theories.
Inquire RP Photonics for virtually any assistance regarding tungstate lasers, including femtosecond lasers and superior-electricity lasers.