Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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In practical terms, the Yb:KYW crystal has identified its area of interest in substantial-electric power laser apps resulting from its capacity to make large Vitality ultrashort laser pulses whilst preserving a compact dimensions. The interplay of its attributes �?seamless ytterbium substitution, potent absorption features, ultrashort pulse era and efficiency in Vitality conversion �?positions the Yb:KYW crystal as being a cornerstone within the laser technologies, masking varied fields ranging from scientific research to industrial apps.
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We existing a dual-crystal Yb:KGW laserthat iscapable to operate to be a Q-switched oscillator with output electric power approximately 24 W and pulse length of 20 ns,or to be a regenerative amplifier with output power as many as 21 W and pulse duration down below 200 fs after compression of chirped pulses. Both equally lasers have outstanding beam high-quality with beam parameter M2
FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of a laser with a rectangular active factor for an output electric power of 700 mW. The width of
Optical format of a laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output in the radiation, WP is really a 50 %-wave plate, CL is really a collimating lens, FL can be a concentrating lens, AE is really an active ingredient made out of an Yb:KYW crystal, DM is really a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC is definitely the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.
The monoclinic crystal structures results in a purely natural birefringence, assisting to stay clear of thermally induced polarization rotation and depolarization decline.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are utilised as lasing resources to crank out ultrashort (~ a hundred-two hundred fs) higher power pulses. Immediate pump of more info Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser devices.
five mm besides the middle in the beam caustic. So that you can Look at the mode matching simulation, we carried out the experiment with Ng-cut crystal oscillator, which was made Formerly As well as in a identical condition with simulation [eleven]. As proven in Determine three(b) with crimson dots and line, the CW output power is extremely depending on the place of laser crystal plus the experimental end result coincides well with simulation end result. To be a Be aware, multimode operation transpired in experiment in the event the sizing from the pump beam is greater than TEM00 cavity method and it results in higher CW output energy within the displacement region below three.five mm.
For tungstates, the ytterbium doping concentration can be quite high with no major quenching because the replaced ions have an exceedingly comparable ion radius, plus the inter-ion length is relatively huge.
Higher-electric power repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical applications
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This tandem of characteristics has far-reaching implications, especially in the construction of compact nevertheless powerfull lasers.
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