New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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In sensible conditions, the Yb:KYW crystal has uncovered its specialized niche in significant-electric power laser apps on account of its capacity to create higher Electrical power ultrashort laser pulses while preserving a compact size. The interplay of its features �?seamless ytterbium substitution, solid absorption features, ultrashort pulse era and efficiency in energy conversion �?positions the Yb:KYW crystal as a cornerstone during the laser technology, covering varied fields starting from scientific study to industrial applications.
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We existing a dual-crystal Yb:KGW laserthat iscapable to function to be a Q-switched oscillator with output power approximately 24 W and pulse size of 20 ns,or as a regenerative amplifier with output electric power up to 21 W and pulse length below 200 fs soon after compression of chirped pulses. Each lasers have fantastic beam excellent with beam parameter M2
FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Energetic aspect for an output electricity of 700 mW. The width of
This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by impressive linear arrays of semiconductor injection lasers possessing fiber output. To prevent spectral narrowing throughout amplification and the corresponding lengthening in the amplified pulse when it truly is compressed, a mix of two Yb:KYW crystals were utilised, Together with the spectral maxima with the amplification shifted relative to each other and with spectral profiling on the amplified radiation.
Soon after air drying and subsequent cleansing with a cotton fabric soaked in Alcoholic beverages, the film surface area confirmed no indications of peeling or scratches.
FIG. one. Optical format of a laser with immediate pumping Using the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
five mm apart from the center in the beam caustic. So that you can check the mode more info matching simulation, we carried out the experiment with Ng-Slash crystal oscillator, which was produced Earlier and in a similar situation with simulation [eleven]. As proven in Figure 3(b) with red dots and line, the CW output electricity is highly dependent on the posture of laser crystal and also the experimental end result coincides very well with simulation final result. To be a Notice, multimode operation happened in experiment when the sizing on the pump beam is much larger than TEM00 cavity mode and it brings about greater CW output electricity during the displacement area under 3.5 mm.
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High-power repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical applications
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Li2WO4-WO3 flux was effectively used lowering The expansion temperature beneath 900 oC. Based on one crystal x-ray measurements, the crystal corresponds to the P2/n House group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is really a exceptional substance that performs an important part in laser technology. Its Major functionality is usually to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Simultaneously, a shorter laser wavelength could be received; it is achievable to function by using a quantum defect nicely down below 1%. Being a consequence, the warmth generation is often so small this partly compensates the decrease thermal conductivity.