The 5-Second Trick For KYW Crystal
The 5-Second Trick For KYW Crystal
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is quite big when compared with that of Yb:YAG. This permits for broad wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values perfectly below 100 fs have already been reached with passive method locking.
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We existing a dual-crystal Yb:KGW laserthat iscapable to work to be a Q-switched oscillator with output electrical power approximately 24 W and pulse duration of twenty ns,or as a regenerative amplifier with output energy around 21 W and pulse length underneath two hundred fs immediately after compression of chirped pulses. Both equally lasers have great beam quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals display powerful peaks at 980 nm and 1030 nm, respectively, making certain effective Strength conversion and substantial effectiveness in laser units.
Optical structure of a laser with direct pumping With all the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output in the radiation, WP is actually a half-wave plate, CL is often a collimating lens, FL is actually a concentrating lens, AE is definitely an Energetic element made out of an Yb:KYW crystal, DM is usually 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.
The monoclinic crystal constructions ends in a organic birefringence, helping to avoid thermally induced polarization rotation and depolarization decline.
Raman, luminescence and transmission spectra reveal optical attributes owing for the presence of thulium ions, and so the elements can be further more examined during the scope of laser and luminescence purposes.
Spatial construction from the beam and also the corresponding depth profiles I for the output on the laser.
For tungstates, the ytterbium doping concentration can be quite superior without having sizeable quenching because the replaced ions have an exceptionally identical ion radius, as well as the inter-ion distance is fairly significant.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW because of the equivalent measurements of those chemical factors around one hundred% of Yb-doping could be reached.
The thermal conductivity of typical double tungstates is of your get to three–4 W/(K m) �?which is not lousy in contrast with other laser crystals (Whilst a number of moments under for YAG), and quite huge as opposed Using the thermal conductivity of normal Eyeglasses.
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