An Unbiased View of KYW Crystal
An Unbiased View of KYW Crystal
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In realistic phrases, the Yb:KYW crystal has uncovered its specialized niche in superior-electrical power laser apps as a consequence of its capacity to produce large Electrical power ultrashort laser pulses when preserving a compact dimension. The interplay of its attributes �?seamless ytterbium substitution, strong absorption properties, ultrashort pulse technology and efficiency in Electricity conversion �?positions the Yb:KYW crystal being a cornerstone while in the laser technologies, covering assorted fields starting from scientific investigate to industrial purposes.
The comparison with glasses is acceptable since the substantial acquire bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a dual-crystal Yb:KGW laserthat iscapable to operate like a Q-switched oscillator with output electricity around 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output energy as much as 21 W and pulse duration below two hundred fs soon after compression of chirped pulses. Equally lasers have great beam excellent with beam parameter M2
FIG. four. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of the laser with a rectangular active ingredient for an output electrical power of seven-hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by powerful linear arrays of semiconductor injection lasers having fiber output. To forestall spectral narrowing in the course of amplification and the corresponding lengthening on the amplified pulse when it is compressed, a combination of two Yb:KYW crystals were being utilized, Along with here the spectral maxima from the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
Prior to the development of Nd:YAG, Nd3+:CaWO4 was a vital scarce-earth-doped laser get medium. It had been actually used in the first continually running crystal laser.
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A superior brightnessQ-switched oscillator and regenerative amplifier dependant on a twin-crystal Yb:KGW laser
For tungstates, the ytterbium doping focus can be very significant with out considerable quenching because the replaced ions have an incredibly identical ion radius, as well as the inter-ion distance is fairly substantial.
Even so, at the time Nd3+:YAG became commercially out there, the curiosity in CaWO4 dropped sharply. In afterwards a long time, certain other tungstate crystals began to attract many notice.
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Li2WO4-WO3 flux was properly used decreasing the growth temperature under 900 oC. In keeping with single crystal x-ray measurements, the crystal corresponds for the P2/n Area team.
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