KYW Crystal - An Overview
KYW Crystal - An Overview
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is a remarkable product that plays an essential job in laser technologies. Its primary purpose is always to generate ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
We current a dual-crystal Yb:KGW laserthat iscapable to function for a Q-switched oscillator with output ability as many as 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output electrical power around 21 W and pulse duration below two hundred fs immediately after compression of chirped pulses. Both equally lasers have great beam good quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Show powerful peaks at 980 nm and 1030 nm, respectively, making certain productive Electricity conversion and significant general performance in laser systems.
Ultrafast lasers, with pulse widths of a few picoseconds (ten−twelve s) or a lot less, empower time resolution necessary in laser-thrilled fluorescence lifetime spectroscopy and imaging procedures.Also, they supply substantial pulse peak powers at higher repetition rates and average common output powers.
The monoclinic crystal constructions leads to a organic birefringence, helping to avoid thermally induced polarization rotation get more info and depolarization decline.
FIG. 1. Optical layout of a laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
Tungstates are likely to obtain superior Raman coefficients (�?Raman scattering). Hence, they might produce considerable Raman get at moderate optical intensities. It is possible to make use of the laser crystal by itself for a Raman converter.
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Substantial-electric power repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical apps
The thermal conductivity of frequent double tungstates is from the order to 3–4 W/(K m) �?which is not bad when compared with other laser crystals (although quite a few times fewer than for YAG), and relatively significant in comparison Using the thermal conductivity of usual glasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared with its counterpart Yb:KGW, can be a amazing substance that plays a crucial function in laser technologies. Its Main functionality will be to create ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Concurrently, a shorter laser wavelength can be attained; it is feasible to work by using a quantum defect effectively down below 1%. To be a consequence, the heat generation might be so small this partly compensates the decreased thermal conductivity.