The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is a exceptional material that performs a significant job in laser technology. Its primary function is to generate ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
FIG. 4. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Lively factor for an output electrical power of seven-hundred mW. The width of
Ultrafast lasers, with pulse widths of some picoseconds (ten−12 s) or significantly less, allow the time resolution required in laser-psyched fluorescence life span spectroscopy and imaging procedures.Also, they provide higher pulse peak powers at high repetition premiums and reasonable average output powers.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a very important unusual-earth-doped laser attain medium. It was the truth is Employed in the initial repeatedly functioning crystal laser.
FIG. one. Optical layout of the laser with direct pumping with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
five mm in addition to the middle in the beam caustic. So that you can Examine the manner matching simulation, we executed the experiment with Ng-Reduce crystal oscillator, which was formulated Formerly and in a very same issue with simulation [eleven]. As demonstrated in Determine three(b) with pink dots and line, the CW output power is extremely depending on the placement of laser crystal and also the experimental final result coincides properly with simulation result. Being a note, multimode operation transpired in experiment in the event the dimension with the pump beam is greater than TEM00 cavity method and it causes greater CW output electric power within the displacement region under three.five mm.
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... Not simply the posture of crystal in the cavity but additionally the amplification axis of crystal affects the laser operation greatly, as the absorption and emission cross sections of your crystal are pretty different according to the orientation from the crystal.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is often a extraordinary substance that plays a crucial function in laser engineering. Its Main functionality will be to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Question RP Photonics for any information concerning tungstate lasers, together with femtosecond lasers and substantial-energy lasers.