Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The comparison with glasses is appropriate Because the huge obtain bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
We existing a twin-crystal Yb:KGW laserthat iscapable to function as being a Q-switched oscillator with output electricity nearly 24 W and pulse duration of twenty ns,or like a regenerative amplifier with output power up to 21 W and pulse period below 200 fs right after compression of chirped pulses. Each lasers have outstanding beam top quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by effective linear arrays of semiconductor injection lasers getting fiber output. To prevent spectral narrowing through amplification and the corresponding lengthening of your amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals had been used, with the spectral maxima with the amplification shifted relative to each other and with spectral profiling of your amplified radiation.
Soon after air drying and subsequent cleansing using a cotton fabric soaked in alcohol, the film surface area confirmed no signs of peeling or scratches.
FIG. one. Optical format of the laser with direct pumping with more info the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
Spatial framework with the beam and also the corresponding intensity profiles I at the output of the laser.
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... Not merely the placement of crystal inside the cavity but additionally the amplification axis of crystal impacts the laser Procedure enormously, since the absorption and emission cross sections from the crystal are quite unique based on the orientation of the crystal.
The thermal conductivity of popular double tungstates is in the get to 3–4 W/(K m) �?which isn't bad when compared with other laser crystals (although many occasions a lot less than for YAG), and fairly huge when compared with the thermal conductivity of standard glasses.
Li2WO4-WO3 flux was properly applied lessening The expansion temperature down below 900 oC. Based on single crystal x-ray measurements, the crystal corresponds for the P2/n Room group.
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