The Single Best Strategy To Use For KYW Crystal
The Single Best Strategy To Use For KYW Crystal
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In useful terms, the Yb:KYW crystal has uncovered its specialized niche in significant-electricity laser programs because of its ability to crank out large energy ultrashort laser pulses though keeping a compact dimension. The interaction of its characteristics �?seamless ytterbium substitution, powerful absorption properties, ultrashort pulse era and efficiency in Power conversion �?positions the Yb:KYW crystal as being a cornerstone in the laser technological know-how, covering numerous fields ranging from scientific investigate to industrial apps.
This exceptional attribute of ultrafast pulses allows nonlinear optical conversation with tissue at very low In general publicity, and drives purposes such as deep-tissue multiphoton microscopy and higher-precision eye surgical treatment
time. Crystals with the compound melts congruently at 1007 oC, having said that melt crystallization of top of the range crystal is extremely hard as a result of section transition at ~920 oC. The best seeded Remedy process from
FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Energetic ingredient for an output energy of seven-hundred mW. The width of
Optical structure of the laser with direct pumping Using the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output of your radiation, WP is often a 50 percent-wave plate, CL is really a collimating lens, FL is really a focusing lens, AE is surely an active component made from an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC could be the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
Adhesion Examination Compliant with MIL-C-675C navy benchmarks, an adhesion examination involved making use of a tape that satisfies LT-90 specs onto the lens film layer. The tape was affixed entirely and afterwards removed vertically. This procedure was done three times, leading to no blistering or peeling.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and therefore are employed as lasing materials to produce ultrashort (~ one hundred-200 fs) high energy pulses. Direct pump check here of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser systems.
five mm besides the center of your beam caustic. In an effort to Verify the method matching simulation, we performed the experiment with Ng-Slice crystal oscillator, which was created Earlier and in a very same condition with simulation [11]. As revealed in Figure 3(b) with purple dots and line, the CW output energy is extremely depending on the position of laser crystal as well as the experimental final result coincides nicely with simulation end result. To be a note, multimode operation transpired in experiment if the sizing from the pump beam is more substantial than TEM00 cavity method and it results in higher CW output energy from the displacement location below 3.5 mm.
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW a result of the equivalent sizes of these chemical features as many as one hundred% of Yb-doping may be realized.
The thermal conductivity of widespread double tungstates is of your order to three–4 W/(K m) �?which is not undesirable as opposed with other laser crystals (Despite the fact that several periods below for YAG), and pretty large when compared Together with the thermal conductivity of common Eyeglasses.
Li2WO4-WO3 flux was efficiently applied minimizing The expansion temperature underneath 900 oC. According to one crystal x-ray measurements, the crystal corresponds to the P2/n space group.
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