Details, Fiction and KYW Crystal

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is actually a extraordinary content that plays an important part in laser engineering. Its Main function is always to make ultrashort pulses of light, spanning just some hundred femtoseconds.

We current a dual-crystal Yb:KGW laserthat iscapable to function as a Q-switched oscillator with output electric power as many as 24 W and pulse length of twenty ns,or to be a regenerative amplifier with output ability around 21 W and pulse period beneath 200 fs immediately after compression of chirped pulses. Both equally lasers have exceptional 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 immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers getting fiber output. To forestall spectral narrowing in the course of amplification and the corresponding lengthening of your amplified pulse when it's compressed, a combination of two Yb:KYW crystals had been used, Using the spectral maxima with the amplification shifted relative to each other and with spectral profiling of the amplified radiation.

In advance of the development of Nd:YAG, Nd3+:CaWO4 was an important unusual-earth-doped laser acquire medium. It absolutely was actually used in the primary continuously running crystal laser.

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Tungstates tend to possess high Raman coefficients (�?Raman scattering). Hence, they will produce major Raman obtain at reasonable optical intensities. It can be done to use the laser crystal by itself for a Raman converter.

For tungstates, the ytterbium doping concentration can be very higher without significant quenching as the replaced ions have a really related ion radius, and also the inter-ion length is comparatively massive.

Nevertheless, the moment Nd3+:YAG turned commercially readily available, the interest in CaWO4 dropped sharply. In later years, sure other tungstate crystals started to appeal to loads of consideration.

The thermal conductivity of prevalent double tungstates is with the buy to 3–four W/(K m) click here �?which is not bad in comparison with other laser crystals (Despite the fact that several situations lower than for YAG), and fairly massive when compared Along with the thermal conductivity of usual glasses.

Li2WO4-WO3 flux was successfully used minimizing the growth temperature beneath 900 oC. Based on solitary crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.

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Check with RP Photonics for just about any information concerning tungstate lasers, which includes femtosecond lasers and high-electrical power lasers.