New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the pulse
FIG. 4. Autocorrelation perform of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong Energetic ingredient for an output power of 700 mW. The width of
This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with direct longitudinal pumping by powerful linear arrays of semiconductor injection lasers acquiring fiber output. To stop spectral narrowing all through amplification and the corresponding lengthening on the amplified pulse when it is compressed, a combination of two Yb:KYW crystals were being utilized, Along with the spectral maxima of the amplification shifted relative to each other and with spectral profiling of the amplified radiation.
Just before the development of Nd:YAG, Nd3+:CaWO4 was an important unusual-earth-doped laser get medium. It absolutely was in actual fact Employed in the main consistently running crystal laser.
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Tungstates have a tendency to own significant Raman coefficients (�?Raman scattering). Therefore, they are able to create important Raman achieve at reasonable optical intensities. It is feasible to use the laser crystal itself as a Raman converter.
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... Not merely the placement of crystal from the cavity and also the amplification axis of crystal influences the laser operation greatly, as the absorption and emission cross sections of the crystal are rather unique based on the orientation from the crystal.
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Simultaneously, a shorter laser wavelength might be received; it is possible to operate with a quantum defect well below one%. As being a consequence, the warmth technology might be so modest that this partly compensates the reduce thermal conductivity.