New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly large in contrast with that of Yb:YAG. This enables for huge wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values well beneath one hundred fs are achieved with passive mode locking.
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We existing a twin-crystal Yb:KGW laserthat iscapable to work like a Q-switched oscillator with output ability approximately 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output power around 21 W and pulse length under two hundred fs immediately after compression of chirped pulses. Both of those lasers have fantastic beam quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with immediate longitudinal pumping by strong linear arrays of semiconductor injection lasers owning fiber output. To forestall spectral narrowing during amplification along with the corresponding lengthening from the amplified pulse when it is compressed, a combination of two Yb:KYW crystals ended up utilised, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
Before the development of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser get medium. It was in reality used in the main continuously running crystal laser.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are utilised as lasing resources to create ultrashort (~ 100-two hundred fs) large energy pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser systems.
Spatial composition with the beam as well as corresponding depth profiles I for the output with the laser.
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... Not merely the posture of crystal during the cavity and also the amplification axis of crystal influences the laser operation greatly, as the absorption and emission cross sections on the crystal are really unique according to the orientation of the crystal.
The thermal conductivity of typical double tungstates is with the order to 3–4 W/(K m) �?which is not poor when compared with other laser crystals (Whilst several periods fewer than for YAG), and reasonably large in comparison with the thermal conductivity of standard Eyeglasses.
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