KYW Crystal Secrets
KYW Crystal Secrets
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This special characteristic of ultrafast pulses permits nonlinear optical conversation with tissue at small General publicity, and drives applications for instance deep-tissue multiphoton microscopy and superior-precision eye surgical treatment
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
The absorption and emission spectra of Yb:KYW Crystals display sturdy peaks at 980 nm and 1030 nm, respectively, making sure productive Strength conversion and substantial performance in laser programs.
This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers acquiring fiber output. To forestall spectral narrowing in the course of amplification along with the corresponding lengthening with the amplified pulse when it is compressed, a combination of two Yb:KYW crystals had been utilized, With all the spectral maxima in the amplification shifted relative to one another and with spectral profiling of your amplified radiation.
Adhesion Take a look at Compliant with MIL-C-675C armed forces standards, an adhesion examination associated applying a tape that fulfills LT-90 technical specs onto the lens film layer. The tape was affixed thoroughly and then eradicated vertically. This process was performed three KYW Crystal times, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical options owing to your presence of thulium ions, and as a consequence the resources could be further more examined within the scope of laser and luminescence programs.
Spatial framework on the beam and the corresponding intensity profiles I within the output with the laser.
... at half-top were produced inside of a master oscillator with selfsynchronization in the axial modes, described within our before report. 21 The new edition of your laser, not like that described inside our previously write-up, employed an Yb:KYW crystal with the N pcut (optical axis N p from the index ellipsoid was parallel to the propagation way on the laser radiation), While using the polarization with the generated radiation directed together the N m axis.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW mainly because of the equivalent sizes of those chemical aspects approximately a hundred% of Yb-doping may be attained.
Even though ytterbium-doped laser attain media usually exhibit a small quantum defect, ytterbium-doped tungstates let for significantly small values. As an example, a 1030-nm Yb:YAG laser would Generally be pumped all around 940 nm, While Yb:KGW or Yb:KYW can be most efficiently pumped about 981 nm.
Li2WO4-WO3 flux was productively used decreasing The expansion temperature down below 900 oC. In accordance with one crystal x-ray measurements, the crystal corresponds to the P2/n Area group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, can be a impressive substance that plays a significant purpose in laser technology. Its primary functionality should be to crank out ultrashort pulses of light, spanning just a few hundred femtoseconds.
Question RP Photonics for just about any advice relating to tungstate lasers, which includes femtosecond lasers and higher-ability lasers.