Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is very substantial compared with that of Yb:YAG. This permits for broad wavelength tunability and for A great deal shorter pulse durations from mode-locked lasers. Values properly down below 100 fs are obtained with passive method locking.
This exclusive characteristic of ultrafast pulses enables nonlinear optical conversation with tissue at small Over-all publicity, and drives applications which include deep-tissue multiphoton microscopy and substantial-precision eye surgical procedure
We present a dual-crystal Yb:KGW laserthat iscapable to operate like a Q-switched oscillator with output electricity as many as 24 W and pulse duration of 20 ns,or as a regenerative amplifier with output power up to 21 W and pulse period beneath 200 fs after compression of chirped pulses. Both lasers have fantastic beam high-quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Screen solid peaks at 980 nm and 1030 nm, respectively, making sure economical energy conversion and high overall performance in laser methods.
Optical structure of a laser with immediate pumping Along with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output of the radiation, WP is usually a 50 %-wave plate, CL can be a collimating lens, FL is really a concentrating lens, AE is undoubtedly an active aspect produced from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC could be the output mirror, and SAM is a semiconductor saturable-absorber mirror.
The monoclinic crystal structures results in a all-natural birefringence, helping to steer clear of thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical attributes owing into the existence of thulium ions, and as a consequence the supplies could possibly be even further examined during the scope of laser and luminescence purposes.
A high brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
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Significant-power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical apps
While ytterbium-doped laser acquire media normally show a little quantum defect, ytterbium-doped tungstates allow for especially tiny values. By way of example, a 1030-nm Yb:YAG laser would Generally be pumped all around 940 nm, While Yb:KGW or Yb:KYW could possibly be most proficiently pumped close to 981 nm.
This tandem of characteristics has far-reaching implications, significantly in the construction of compact nevertheless powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at space temperature have been calculated. The emission spectrum and life time with the three File four psyched point out were determined. Making use of common and modified Judd–Ofelt theories, the depth parameters plus the radiative lifetimes ended up calculated and fantastic settlement While using the experimental final results was acquired for equally theories.
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