Everything about KYW Crystal
Everything about KYW Crystal
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In simple phrases, the Yb:KYW crystal has identified its niche in high-ability laser apps on account of its capability to generate superior Vitality ultrashort laser pulses whilst maintaining a compact sizing. The interplay of its attributes �?seamless ytterbium substitution, potent absorption attributes, ultrashort pulse generation and efficiency in Electrical power conversion �?positions the Yb:KYW crystal for a cornerstone inside the laser technologies, masking various fields starting from scientific analysis to industrial purposes.
The comparison with glasses is suitable For the reason that significant obtain bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a twin-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output energy up to 24 W and pulse duration of 20 ns,or being a regenerative amplifier with output electricity nearly 21 W and pulse period underneath two hundred fs after compression of chirped pulses. The two lasers have great beam top quality with beam parameter M2
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Optical structure of the laser with immediate pumping Along with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output with the radiation, WP can be a half-wave plate, CL is usually a collimating lens, FL is really a concentrating lens, AE is an Lively factor created from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC will be the output mirror, and click here SAM is really a semiconductor saturable-absorber mirror.
Right before the development of Nd:YAG, Nd3+:CaWO4 was an important scarce-earth-doped laser obtain medium. It had been in reality Employed in the initial repeatedly working crystal laser.
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A higher brightnessQ-switched oscillator and regenerative amplifier dependant on a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping concentration can be quite significant with out major quenching because the changed ions have an incredibly similar ion radius, along with the inter-ion distance is comparatively substantial.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to comparable measurements of those chemical components as many as one hundred% of Yb-doping may very well be achieved.
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At the same time, a shorter laser wavelength could be received; it can be done to work having a quantum defect properly underneath one%. As a consequence, the heat generation could be so modest this partly compensates the decreased thermal conductivity.