The KYW Crystal Diaries
The KYW Crystal Diaries
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly massive as opposed with that of Yb:YAG. This permits for huge wavelength tunability and for Substantially shorter pulse durations from method-locked lasers. Values properly under one hundred fs happen to be accomplished with passive mode locking.
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time. Crystals from the compound melts congruently at 1007 oC, however soften crystallization of high quality crystal is not possible resulting from stage transition at ~920 oC. The top seeded solution technique from
FIG. 4. Autocorrelation functionality of the heartbeat 共a兲and spectrum 共b兲of a laser with an oblong active element for an output electric power of seven hundred mW. The width of
Optical format of a laser with direct pumping Using the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output on the radiation, WP is often a 50 percent-wave plate, CL is often a collimating lens, FL can be a focusing lens, AE is definitely an active ingredient made from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC is the output mirror, and SAM is a semiconductor saturable-absorber mirror.
The monoclinic crystal buildings leads to a pure birefringence, helping to prevent thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra reveal optical options owing for the presence of thulium ions, and as a consequence the resources could be even more examined within the scope of laser and luminescence apps.
A high brightnessQ-switched oscillator and regenerative amplifier depending on a dual-crystal Yb:KGW laser
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW as a result of very similar sizes of those chemical things up to more info 100% of Yb-doping could possibly be reached.
The thermal conductivity of prevalent double tungstates is with the buy to three–four W/(K m) �?which is not negative in comparison with other laser crystals (Whilst a number of periods fewer than for YAG), and relatively huge as opposed Using the thermal conductivity of normal glasses.
Li2WO4-WO3 flux was properly used lessening The expansion temperature under 900 oC. In line with solitary crystal x-ray measurements, the crystal corresponds on the P2/n Place team.
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Request RP Photonics for any assistance regarding tungstate lasers, including femtosecond lasers and superior-power lasers.