KYW Crystal Secrets
KYW Crystal Secrets
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In functional conditions, the Yb:KYW crystal has identified its niche in large-electrical power laser programs as a consequence of its power to generate significant Power ultrashort laser pulses even though retaining a compact sizing. The interaction of its attributes �?seamless ytterbium substitution, potent absorption features, ultrashort pulse generation and performance in Strength conversion �?positions the Yb:KYW crystal to be a cornerstone inside the laser technological know-how, covering diverse fields starting from scientific investigation to industrial programs.
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We current a dual-crystal Yb:KGW laserthat iscapable to operate as a Q-switched oscillator with output ability up to 24 W and pulse length of 20 ns,or like a regenerative amplifier with output electricity around 21 W and pulse period below 200 fs soon after compression of chirped pulses. Both equally lasers have excellent beam good quality with beam parameter M2
FIG. four. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of the laser with an oblong Lively aspect for an output power of seven-hundred mW. The width of
Ultrafast lasers, with pulse widths of some picoseconds (ten−12 s) or much less, allow the time resolution essential in laser-enthusiastic fluorescence life time spectroscopy and imaging approaches.Furthermore, they provide large pulse peak powers at superior repetition charges and average typical output powers.
Adhesion Take a look at Compliant with MIL-C-675C armed service expectations, an adhesion examination concerned applying a tape that meets LT-ninety technical specs onto the lens movie layer. The tape was affixed fully and then taken out vertically. This course of action was done thrice, causing no blistering or peeling.
FIG. one. Optical structure of the laser with direct pumping With all the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
5 mm apart from the center from the beam caustic. In order to Examine the method matching simulation, we executed the experiment with Ng-Minimize crystal oscillator, which was created Earlier and in a very same issue with simulation [11]. As proven in Determine three(b) with crimson dots and line, the CW output electricity is highly dependent on the situation of laser crystal along with the experimental result coincides effectively with simulation consequence. To be a Observe, multimode Procedure occurred in experiment if the dimension on the pump beam is much larger than TEM00 cavity method and it will cause increased CW output ability within the displacement location under 3.5 mm.
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... Not merely the posture of crystal while in the cavity but will also the amplification axis of crystal influences the laser operation considerably, since the absorption and emission cross sections with the crystal are pretty distinctive in accordance with the orientation with the crystal.
The thermal conductivity of typical double tungstates is of the get to three–four W/(K m) �?which is not poor as opposed with other laser crystals (Despite the fact that numerous times a lot less than for YAG), and reasonably big in contrast While using the thermal conductivity of standard Eyeglasses.
Li2WO4-WO3 flux was productively used lessening the growth temperature below 900 oC. In line with one crystal x-ray measurements, the crystal corresponds into the P2/n Room team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at place temperature ended up measured. The emission spectrum and lifetime from the three F four energized state had been established. Using typical and modified Judd–Ofelt theories, the depth KYW Crystal parameters plus the radiative lifetimes have been calculated and excellent settlement With all the experimental effects was obtained for both theories.
Inquire RP Photonics for any guidance concerning tungstate lasers, like femtosecond lasers and large-power lasers.