Getting My KYW Crystal To Work

Getting My KYW Crystal To Work

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is usually a amazing content that performs a significant position in laser technologies. Its Key function will be to deliver ultrashort pulses of light, spanning just a few hundred femtoseconds.

We present a dual-crystal Yb:KGW laserthat iscapable to work for a Q-switched oscillator with output electrical power around 24 W and pulse length of twenty ns,or to be a regenerative amplifier with output electricity approximately 21 W and pulse period under 200 fs just after compression of chirped pulses. Both equally lasers have excellent beam high quality with beam parameter M2

The absorption and emission spectra of Yb:KYW Crystals display robust peaks at 980 nm and 1030 nm, respectively, ensuring efficient Electricity conversion and high performance in laser systems.

Optical layout of the laser with direct pumping With all the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output from the radiation, WP is a 50 %-wave plate, CL is a collimating lens, FL can be a focusing lens, AE is surely an Energetic component comprised of an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 will be the cavity mirrors, OC will be the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.

Just before the event of Nd:YAG, Nd3+:CaWO4 more info was a vital unusual-earth-doped laser acquire medium. It absolutely was the truth is used in the primary continually functioning crystal laser.

FIG. one. Optical format of a laser with direct pumping with the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output

Tungstates tend to have substantial Raman coefficients (�?Raman scattering). Hence, they are able to generate sizeable Raman achieve at moderate optical intensities. It can be done to make use of the laser crystal alone as a Raman converter.

For tungstates, the ytterbium doping concentration can be very high with out considerable quenching as the replaced ions have an exceedingly identical ion radius, and the inter-ion distance is pretty substantial.

Significant-electrical power repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical programs

The thermal conductivity of common double tungstates is with the purchase to 3–four W/(K m) �?which isn't negative when compared with other laser crystals (although various situations fewer than for YAG), and pretty huge as opposed with the thermal conductivity of regular glasses.

This tandem of characteristics has far-achieving implications, especially in the development of compact however powerfull lasers.

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