The smart Trick of KYW Crystal That Nobody is Discussing
The smart Trick of KYW Crystal That Nobody is Discussing
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is rather large compared with that of Yb:YAG. This enables for wide wavelength tunability and for much shorter pulse durations from manner-locked lasers. Values very well beneath a hundred fs are actually reached with passive method locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is usually a outstanding product that plays an important purpose in laser technologies. Its Principal functionality would be to create ultrashort pulses of light, spanning just a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in mild absorption at about 981 nm tends to make the crystal well suited for diode pumping. It is actually further more Improved by its impressive efficiency in this method, coupled with its very low quantum defect.
Colour-coded reflectivity of the Bragg mirror as a operate of wavelength and angle of your incident beam.
Optical layout of a laser with direct pumping With all the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output on the radiation, WP is often a 50 %-wave plate, CL is often a collimating lens, FL is often a concentrating lens, AE is really an Energetic factor made out of an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is definitely the output mirror, and SAM is a semiconductor saturable-absorber mirror.
The monoclinic crystal structures leads to a organic birefringence, helping to keep away from thermally induced polarization rotation and depolarization reduction.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are made use of as lasing materials to produce ultrashort (~ 100-200 fs) higher electrical power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser methods.
Tungstates are inclined to obtain high Raman coefficients (�?Raman scattering). As a result, they could crank out sizeable Raman attain at moderate optical intensities. It is feasible to make use of the laser crystal by itself being a Raman converter.
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW mainly because of the very similar dimensions of such chemical elements up to one hundred% of Yb-doping may very well be obtained.
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