Details, Fiction and KYW Crystal
Details, Fiction and KYW Crystal
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This distinctive attribute of ultrafast pulses permits nonlinear optical conversation with tissue at small All round exposure, and drives apps for instance deep-tissue multiphoton microscopy and superior-precision eye surgical procedure
time. Crystals on the compound melts congruently at 1007 oC, having said that melt crystallization of top quality crystal is extremely hard as a result of period transition at ~920 oC. The top seeded Remedy method from
FIG. 4. Autocorrelation operate of the heart beat 共a兲and spectrum 共b兲of the laser with a rectangular Energetic element for an output electricity of seven-hundred mW. The width of
Optical layout of the laser with immediate pumping Along with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output in the radiation, WP is often a half-wave plate, CL is really a collimating lens, FL is actually a focusing lens, AE is surely an active factor produced from an Yb:KYW crystal, DM is often a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC may be the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
The monoclinic crystal structures brings about a all-natural birefringence, assisting to steer clear of thermally induced polarization rotation and depolarization decline.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and are used as lasing elements to deliver ultrashort (~ a hundred-200 fs) large electric power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser techniques.
A higher brightnessQ-switched oscillator and regenerative amplifier depending on a twin-crystal Yb:KGW laser
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW because of the related dimensions of these chemical things as much as a hundred% of Yb-doping could be reached.
The thermal conductivity of typical double tungstates check here is with the buy to 3–4 W/(K m) �?which is not undesirable in comparison with other laser crystals (although many periods less than for YAG), and relatively massive in contrast While using the thermal conductivity of usual Eyeglasses.
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