Top KYW Crystal Secrets
Top KYW Crystal Secrets
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is usually a exceptional substance that plays a crucial purpose in laser technological innovation. Its Major perform would be to produce ultrashort pulses of light, spanning just a few hundred femtoseconds.
We present a dual-crystal Yb:KGW laserthat iscapable to function being a Q-switched oscillator with output electricity around 24 W and pulse length of twenty ns,or being a regenerative amplifier with output electrical power as much as 21 W and pulse period under 200 fs after compression of chirped pulses. Both of those lasers have great beam high quality with beam parameter M2
FIG. four. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with a rectangular Energetic ingredient for an output electrical power of seven-hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with direct longitudinal pumping by potent linear arrays of semiconductor injection lasers owning fiber output. To avoid spectral narrowing all through amplification and also the corresponding lengthening of the amplified pulse when it can be compressed, a mix of two Yb:KYW crystals were being made use of, Together with the spectral maxima of your amplification shifted relative to each other and with spectral profiling from the amplified radiation.
Adhesion Test Compliant with MIL-C-675C armed forces criteria, an adhesion test involved applying a tape that fulfills LT-90 requirements on to the lens movie layer. The tape was affixed thoroughly after which you KYW Crystal can removed vertically. This process was carried out 3 times, leading to no blistering or peeling.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are made use of as lasing materials to produce ultrashort (~ 100-200 fs) high electricity pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser devices.
Tungstates tend to get significant Raman coefficients (�?Raman scattering). Hence, they can produce substantial Raman obtain at reasonable optical intensities. It is achievable to make use of the laser crystal by itself being a Raman converter.
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Superior-energy repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical apps
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is a extraordinary product that performs a vital part in laser engineering. Its Main operate is usually to produce ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Simultaneously, a shorter laser wavelength might be attained; it is possible to operate using a quantum defect very well down below one%. Being a consequence, the heat era is often so compact that this partly compensates the reduce thermal conductivity.