KYW Crystal Secrets

KYW Crystal Secrets

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In sensible phrases, the Yb:KYW crystal has uncovered its specialized niche in substantial-electricity laser applications due to its power to create higher Strength ultrashort laser pulses whilst protecting a compact dimensions. The interplay of its capabilities �?seamless ytterbium substitution, sturdy absorption traits, ultrashort pulse technology and effectiveness in Electricity conversion �?positions the Yb:KYW crystal like a cornerstone inside the laser know-how, covering various fields starting from scientific study to industrial purposes.

The comparison with glasses is appropriate For the reason that substantial gain bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.

time. Crystals from the compound melts congruently at 1007 oC, having said that melt crystallization of top quality crystal is unachievable as a result of section changeover at ~920 oC. The best seeded Remedy approach from

Colour-coded reflectivity of the Bragg mirror as a operate of wavelength and angle with the incident beam.

Optical structure of the laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output from the radiation, WP is usually a 50 percent-wave plate, CL is actually a collimating lens, FL is really a concentrating lens, AE is surely an Lively factor produced from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC would be the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.

The monoclinic crystal structures leads to a pure birefringence, assisting to stay clear of thermally induced polarization rotation and depolarization decline.

FIG. one. Optical format of a laser with immediate pumping Using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output

Tungstates tend to have large Raman coefficients (�?Raman scattering). Hence, they're able to generate significant Raman acquire at moderate optical intensities. It is feasible to use the laser crystal itself as a Raman converter.

For tungstates, the ytterbium doping focus can be very higher with out significant quenching since the replaced ions have an exceedingly very similar ion radius, as well as the inter-ion distance is relatively significant.

... Not only the position of crystal during the cavity but also the amplification axis of crystal affects the laser operation greatly, as the absorption and emission cross sections of the crystal are quite different in accordance with the orientation of your crystal.

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