New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The comparison with glasses is appropriate Considering that the significant get bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
The Yb:KYW crystal’s proficiency in gentle absorption at around 981 nm helps make the crystal compatible for diode pumping. It is additional Improved by its impressive performance in this method, coupled with its very low quantum defect.
Shade-coded reflectivity of the Bragg mirror as being a function of wavelength and angle on the incident beam.
This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by impressive linear arrays of semiconductor injection lasers owning fiber output. To forestall spectral narrowing through amplification along with the corresponding lengthening in the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals had been used, While using the spectral maxima on the amplification shifted relative to each other and with spectral profiling with the amplified radiation.
Adhesion Check Compliant with MIL-C-675C armed service standards, an adhesion check concerned applying a tape that meets LT-90 specs on to the lens movie layer. The more info tape was affixed absolutely then taken off vertically. This course of action was executed thrice, leading to no blistering or peeling.
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Tungstates are inclined to acquire superior Raman coefficients (�?Raman scattering). Consequently, they're able to make major Raman get at reasonable optical intensities. It is achievable to make use of the laser crystal by itself being a Raman converter.
For tungstates, the ytterbium doping focus can be very substantial with out important quenching as the replaced ions have an incredibly identical ion radius, as well as the inter-ion length is pretty large.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to the identical measurements of these chemical elements as many as 100% of Yb-doping could be attained.
The thermal conductivity of typical double tungstates is from the get to three–4 W/(K m) �?which is not bad as opposed with other laser crystals (Whilst many occasions lower than for YAG), and reasonably large in comparison While using the thermal conductivity of standard Eyeglasses.
Li2WO4-WO3 flux was correctly applied lowering The expansion temperature down below 900 oC. Based on solitary crystal x-ray measurements, the crystal corresponds to your P2/n space group.
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