The Greatest Guide To KYW Crystal
The Greatest Guide To KYW Crystal
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely significant when compared with that of Yb:YAG. This enables for large wavelength tunability and for much shorter pulse durations from method-locked lasers. Values nicely below 100 fs are already obtained with passive method locking.
This unique characteristic of ultrafast pulses allows nonlinear optical conversation with tissue at very low Total exposure, and drives applications like deep-tissue multiphoton microscopy and significant-precision eye surgical procedure
We existing a dual-crystal Yb:KGW laserthat iscapable to work like a Q-switched oscillator with output power as many as 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output ability approximately 21 W and pulse duration down below two hundred fs following compression of chirped pulses. Both of those lasers have great beam good quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers acquiring fiber output. To stop spectral narrowing all through amplification as well as the corresponding lengthening in the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals ended up made use of, Together with the spectral maxima with the amplification shifted relative to each other and with spectral profiling with the amplified radiation.
Prior to the development of Nd:YAG, Nd3+:CaWO4 was a very important scarce-earth-doped laser obtain medium. It was in actual fact Employed in the first consistently working crystal laser.
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Spatial construction from the beam and also the corresponding intensity profiles I within the output from the laser.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW as a result of comparable dimensions of those chemical factors nearly 100% of Yb-doping may very well be attained.
When ytterbium-doped laser attain media commonly show a small quantum defect, ytterbium-doped tungstates permit for especially compact values. As an example, a 1030-nm Yb:YAG laser would Ordinarily be pumped about 940 nm, While Yb:KGW or Yb:KYW could possibly be most proficiently pumped all over 981 nm.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, is really a amazing content that performs a very important function in laser technology. Its Major functionality is always to generate ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Concurrently, a shorter laser wavelength might be received; it is achievable to operate that click here has a quantum defect properly underneath one%. To be a consequence, the warmth generation might be so compact this partly compensates the lower thermal conductivity.