New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is rather huge in comparison with that of Yb:YAG. This enables for large wavelength tunability and for A lot shorter pulse durations from method-locked lasers. Values well beneath a hundred fs are actually realized with passive mode locking.
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time. Crystals on the compound melts congruently at 1007 oC, nonetheless melt crystallization of top of the range crystal is extremely hard because of section transition at ~920 oC. The best seeded Resolution technique from
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Optical layout of the laser with direct pumping with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output on the radiation, WP is actually a 50 %-wave plate, CL can be a collimating lens, FL is a concentrating lens, AE is definitely an Energetic element made out of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 will be the cavity mirrors, OC is definitely the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
Adhesion Exam Compliant with MIL-C-675C army specifications, an adhesion examination included making use of a tape that fulfills LT-ninety requirements on to the lens film layer. The tape was affixed completely then taken off vertically. This process was performed three times, causing no blistering or peeling.
Raman, luminescence and transmission spectra expose optical attributes owing for the presence of thulium ions, and so the elements may very well be additional analyzed from the scope of laser and luminescence applications.
A higher brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW mainly because of the identical measurements of these chemical elements as many as one hundred% of Yb-doping might be obtained.
Even though ytterbium-doped laser get media frequently show a little quantum defect, ytterbium-doped tungstates allow for for particularly small values. For instance, a 1030-nm Yb:YAG laser would Usually be pumped about 940 nm, whereas Yb:KGW or Yb:KYW can be most competently pumped all over 981 nm.
Li2WO4-WO3 flux was properly used decreasing the growth temperature underneath 900 oC. According to solitary crystal x-ray measurements, the crystal corresponds into the P2/n space team.
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Concurrently, a shorter laser wavelength might be acquired; it can be done to function having a quantum defect perfectly under 1%. For a consequence, the heat era can be so smaller that this partly more info compensates the decrease thermal conductivity.