Helping The others Realize The Advantages Of KYW Crystal
Helping The others Realize The Advantages Of KYW Crystal
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This one of a kind characteristic of ultrafast pulses allows nonlinear optical conversation with tissue at very low In general exposure, and drives programs for example deep-tissue multiphoton microscopy and higher-precision eye surgical procedure
We existing a twin-crystal Yb:KGW laserthat iscapable to function being a Q-switched oscillator with output electricity around 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output electrical power as much as 21 W and pulse duration beneath two hundred fs after compression of chirped pulses. The two lasers have superb beam quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by impressive linear arrays of semiconductor injection lasers getting fiber output. To avoid spectral narrowing through amplification as well as the corresponding lengthening of your amplified pulse when it's compressed, a mix of two Yb:KYW crystals were being made use of, Using the spectral maxima of your amplification shifted relative to one another and with spectral profiling in the amplified radiation.
Right before the event of Nd:YAG, Nd3+:CaWO4 was a vital scarce-earth-doped laser attain medium. It absolutely was in actual fact Utilized in the initial constantly operating crystal laser.
FIG. one. Optical structure of the laser with immediate pumping Using the radiation of get more info semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
5 mm other than the center on the beam caustic. In order to check the method matching simulation, we carried out the experiment with Ng-cut crystal oscillator, which was developed Formerly and in a very same condition with simulation [11]. As shown in Figure three(b) with crimson dots and line, the CW output energy is extremely dependent on the posture of laser crystal and the experimental outcome coincides effectively with simulation result. For a Be aware, multimode operation transpired in experiment when the dimensions from the pump beam is greater than TEM00 cavity method and it results in greater CW output electricity inside the displacement region down below three.5 mm.
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... Not merely the place of crystal during the cavity and also the amplification axis of crystal has an effect on the laser Procedure enormously, since the absorption and emission cross sections on the crystal are very diverse based on the orientation from the crystal.
The thermal conductivity of frequent double tungstates is of the buy to 3–4 W/(K m) �?which isn't undesirable compared with other laser crystals (While numerous situations under for YAG), and quite big when compared Using the thermal conductivity of normal Eyeglasses.
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