The KYW Crystal Diaries
The KYW Crystal Diaries
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is rather large in comparison with that of Yb:YAG. This enables for large wavelength tunability and for A lot shorter pulse durations from mode-locked lasers. Values perfectly below 100 fs have been attained with passive method locking.
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We present a dual-crystal Yb:KGW laserthat iscapable to operate as being a Q-switched oscillator with output electric power around 24 W and pulse length of 20 ns,or as being a regenerative amplifier with output electrical power up to 21 W and pulse period below two hundred fs after compression of chirped pulses. The two lasers have fantastic beam quality with beam parameter M2
Colour-coded reflectivity of a Bragg mirror being a purpose of wavelength and angle of your incident beam.
Ultrafast lasers, with pulse widths of a few picoseconds (10−twelve s) or fewer, empower enough time resolution essential in laser-enthusiastic fluorescence life span spectroscopy and imaging techniques.In addition, they supply significant pulse peak powers at higher repetition costs and moderate ordinary output powers.
Soon after air drying and subsequent cleansing using a cotton fabric soaked in alcohol, the film area showed no signs of peeling or scratches.
Raman, luminescence and transmission spectra reveal optical attributes owing for the presence of thulium ions, and so the elements can be further studied within the scope of laser and luminescence applications.
A higher brightnessQ-switched oscillator and regenerative amplifier according to here a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping focus can be very large without the need of substantial quenching because the replaced ions have a really equivalent ion radius, along with the inter-ion distance is fairly substantial.
... Don't just the place of crystal inside the cavity but in addition the amplification axis of crystal influences the laser operation tremendously, because the absorption and emission cross sections from the crystal are fairly various according to the orientation in the crystal.
The thermal conductivity of typical double tungstates is of your purchase to three–four W/(K m) �?which is not lousy in comparison with other laser crystals (although various occasions a lot less than for YAG), and pretty substantial compared Together with the thermal conductivity of typical glasses.
Li2WO4-WO3 flux was efficiently used reducing the growth temperature underneath 900 oC. According to single crystal x-ray measurements, the crystal corresponds for the P2/n Place team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at space temperature have been calculated. The emission spectrum and life span of the 3 F 4 fired up condition ended up identified. Applying standard and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes had been calculated and excellent arrangement Together with the experimental benefits was acquired for the two theories.
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