5 Simple Statements About KYW Crystal Explained
5 Simple Statements About KYW Crystal Explained
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW may be very big in comparison with that of Yb:YAG. This permits for wide wavelength tunability and for Significantly shorter pulse durations from method-locked lasers. Values very well down below a hundred fs happen to be attained with passive method locking.
This exclusive characteristic of ultrafast pulses allows nonlinear optical interaction with tissue at very low Total exposure, and drives apps including deep-tissue multiphoton microscopy and high-precision eye surgical procedures
We present a dual-crystal Yb:KGW laserthat iscapable to work as a Q-switched oscillator with output electrical power around 24 W and pulse length of 20 ns,or as being a regenerative amplifier with output power as much as 21 W and pulse length beneath 200 fs following compression of chirped pulses. Both lasers have fantastic beam high-quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by powerful linear arrays of semiconductor injection lasers having fiber output. To circumvent spectral narrowing all through amplification plus the corresponding lengthening on the amplified pulse when it really is compressed, a mix of two Yb:KYW crystals ended up employed, with the spectral maxima with the amplification shifted relative to each other and with spectral profiling of the amplified radiation.
Just before the event of Nd:YAG, Nd3+:CaWO4 was an important scarce-earth-doped laser acquire medium. It had been in actual fact used in the primary constantly running crystal laser.
FIG. one. Optical structure of the laser with immediate pumping Using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output
Tungstates have a tendency to own significant Raman coefficients (�?Raman scattering). Therefore, they are able to create important Raman achieve at reasonable optical intensities. It is achievable to make use of the laser crystal itself as being a Raman converter.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW as a result of very similar dimensions of those chemical factors as much as a hundred% of Yb-doping may very well be attained.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is usually a extraordinary substance that performs more info a vital part in laser engineering. Its Main function should be to crank out ultrashort pulses of light, spanning just some hundred femtoseconds.
Ask RP Photonics for any information regarding tungstate lasers, including femtosecond lasers and significant-energy lasers.