The KYW Crystal Diaries
The KYW Crystal Diaries
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly large in contrast with that of Yb:YAG. This enables for huge wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values effectively under one hundred fs are obtained with passive manner locking.
This one of a kind attribute of ultrafast pulses permits nonlinear optical conversation with tissue at reduced overall publicity, and drives apps for instance deep-tissue multiphoton microscopy and superior-precision eye surgical procedures
Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the pulse
The absorption and emission spectra of Yb:KYW Crystals Exhibit strong peaks at 980 nm and 1030 nm, respectively, ensuring effective Vitality conversion and substantial effectiveness in laser units.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW a result of the very similar dimensions of such chemical components around one hundred% of Yb-doping may be realized. This one of a kind characteristic permits ytterbium to take the place of yttrium with virtually no disruption to the crystal’s lattice.
Adhesion Test Compliant with MIL-C-675C military services benchmarks, an adhesion check concerned applying a tape that fulfills LT-ninety requirements on to the lens film layer. The tape was affixed totally after which eliminated vertically. This treatment was carried out three times, resulting in no blistering or peeling.
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Spatial framework on the beam plus the corresponding intensity profiles I in the output of the laser.
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... get more info Not simply the position of crystal inside the cavity but also the amplification axis of crystal affects the laser Procedure greatly, as the absorption and emission cross sections of your crystal are pretty unique based on the orientation in the crystal.
The thermal conductivity of widespread double tungstates is from the buy to 3–4 W/(K m) �?which isn't undesirable in contrast with other laser crystals (Whilst numerous situations under for YAG), and quite significant in contrast While using the thermal conductivity of common glasses.
Li2WO4-WO3 flux was correctly applied lowering The expansion temperature underneath 900 oC. Based on single crystal x-ray measurements, the crystal corresponds for the P2/n space group.
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