Detailed Notes on KYW Crystal
Detailed Notes on KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is really a impressive material that plays a crucial position in laser technological know-how. Its Principal operate should be to produce ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
FIG. 4. Autocorrelation function of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong active factor for an output power of seven-hundred mW. The width of
Optical layout of a laser with immediate pumping with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output from the radiation, WP is usually a fifty percent-wave plate, CL is a collimating lens, FL can be a concentrating lens, AE is surely an active ingredient produced from an Yb:KYW crystal, DM is often a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC may be the output mirror, and SAM is often a semiconductor saturable-absorber mirror.
Following air drying and subsequent cleansing by using a cotton fabric soaked in Liquor, the movie surface area confirmed no indications of peeling or scratches.
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 besides the center on the beam caustic. In an effort to Examine the mode matching simulation, we executed the experiment with Ng-Minimize crystal oscillator, which was produced Formerly As well as in a similar problem with simulation [eleven]. As proven in Determine 3(b) with pink dots and line, the CW output electricity is highly dependent on the position of laser crystal plus the experimental result coincides very well with simulation outcome. For a note, multimode operation happened in experiment when the dimension from the pump beam is greater than TEM00 cavity method and it results in greater CW output electric power in the displacement region under three.five mm.
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Higher-ability repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical apps
When ytterbium-doped laser achieve media commonly show a small quantum defect, ytterbium-doped tungstates let for specially smaller values. Such as, a 1030-nm Yb:YAG laser would Commonly be pumped all over 940 nm, While Yb:KGW or Yb:KYW could possibly be most effectively pumped about 981 nm.
This tandem of characteristics has much-reaching implications, significantly in the construction of compact nevertheless powerfull lasers.
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