A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is very massive when compared with that of Yb:YAG. This enables for wide wavelength tunability and for Considerably shorter pulse durations from mode-locked lasers. Values nicely down below one hundred fs are obtained with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is really a exceptional material that performs a very important job in laser know-how. Its Major perform is usually to generate ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
The absorption and emission spectra of Yb:KYW Crystals Show sturdy peaks at 980 nm and 1030 nm, respectively, guaranteeing economical energy conversion and large functionality in laser systems.
This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers acquiring fiber output. To forestall spectral narrowing through amplification plus the corresponding lengthening with the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals were being employed, With all the spectral maxima on the amplification shifted relative to each other and with spectral profiling on the amplified radiation.
Adhesion Examination Compliant with MIL-C-675C armed service standards, an adhesion test concerned implementing a tape that fulfills LT-90 technical specs onto the lens movie layer. The tape was affixed thoroughly after which taken out vertically. This treatment was performed three times, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical functions owing to your presence of thulium ions, and thus the components may very well be more analyzed from the scope of laser and luminescence applications.
Tungstates tend to acquire substantial Raman coefficients (�?Raman scattering). Therefore, they could make sizeable Raman obtain at average optical intensities. It is achievable to make use of the laser crystal alone to be a Raman converter.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW a result of the very similar measurements of those chemical factors around one hundred% of Yb-doping could possibly be reached.
The more info thermal conductivity of common double tungstates is from the purchase to 3–four W/(K m) �?which is not lousy when compared with other laser crystals (While several situations fewer than for YAG), and quite big in comparison with the thermal conductivity of common glasses.
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Check with RP Photonics for any tips about tungstate lasers, such as femtosecond lasers and significant-electric power lasers.