The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly large in comparison with that of Yb:YAG. This enables for large wavelength tunability and for much shorter pulse durations from method-locked lasers. Values properly down below a hundred fs have been accomplished with passive mode locking.

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Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing inside of a regenerative amplifier by spectral profiling of the pulse

Shade-coded reflectivity of the Bragg mirror as a perform of wavelength and angle on the incident beam.

Optical layout of the laser with direct pumping While using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output of the radiation, WP is usually a fifty percent-wave plate, CL is usually a collimating lens, FL can be a concentrating lens, AE is surely an Lively element made out of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.

The monoclinic crystal buildings ends in a pure birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.

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Tungstates have a tendency to own significant Raman coefficients (�?Raman scattering). Consequently, they're check here able to make major Raman get at average optical intensities. It is achievable to make use of the laser crystal by itself like a Raman converter.

... at 50 %-peak had been generated inside of a grasp oscillator with selfsynchronization from the axial modes, explained in our before short article. 21 The new version of your laser, contrary to that described in our before write-up, used an Yb:KYW crystal by having an N pcut (optical axis N p from the index ellipsoid was parallel into the propagation path of your laser radiation), Together with the polarization of the produced radiation directed together the N m axis.

Even so, at the time Nd3+:YAG turned commercially obtainable, the fascination in CaWO4 dropped sharply. In afterwards decades, particular other tungstate crystals started to draw in loads of attention.

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This tandem of characteristics has much-reaching implications, significantly in the construction of compact still powerfull lasers.

Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is often a amazing substance that performs a vital part in laser engineering. Its Main function should be to make ultrashort pulses of light, spanning just some hundred femtoseconds.

Inquire RP Photonics for virtually any suggestions about tungstate lasers, like femtosecond lasers and higher-electric power lasers.