Top KYW Crystal Secrets
Top KYW Crystal Secrets
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is rather large in comparison with that of Yb:YAG. This enables for huge wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values properly under one hundred fs are actually achieved with passive method locking.
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Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the heartbeat
Coloration-coded reflectivity of the Bragg mirror as being a operate of wavelength and angle of the incident beam.
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by effective linear arrays of semiconductor injection lasers possessing fiber output. To avoid spectral narrowing for the duration of amplification as well as the corresponding lengthening of the amplified pulse when it is compressed, a mix of two Yb:KYW crystals had been made use of, Along with the spectral maxima in the amplification shifted relative to one another and with spectral profiling with the amplified radiation.
Adhesion Examination Compliant with MIL-C-675C military services requirements, an adhesion examination included making use of a tape that fulfills LT-90 requirements on to the lens film layer. The tape was affixed completely and afterwards eradicated vertically. This course of action was executed thrice, leading to no blistering or peeling.
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Spatial construction with the beam along with the corresponding intensity profiles I on the output in the laser.
For tungstates, the ytterbium doping focus can be very superior with no significant quenching since the changed ions have a very related ion radius, as well as inter-ion distance is comparatively substantial.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to the identical measurements of these chemical features as many as 100% of Yb-doping could be accomplished.
The thermal conductivity of typical double tungstates is of your order to three–4 W/(K m) �?which isn't poor as opposed with other laser crystals (Despite the fact that a number of situations under for YAG), and quite huge as opposed Together with the thermal conductivity of usual glasses.
Li2WO4-WO3 flux was efficiently used decreasing the growth temperature underneath 900 oC. Based on solitary crystal x-ray measurements, the crystal corresponds to your P2/n House group.
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