Details, Fiction and KYW Crystal

Details, Fiction and KYW Crystal

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The get bandwidth e.g. of Yb:KGW and Yb:KYW is very big in contrast with that of Yb:YAG. This enables for vast wavelength tunability and for Considerably shorter pulse durations from method-locked lasers. Values properly under one hundred fs have already been attained with passive mode locking.

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Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing in a very regenerative amplifier by spectral profiling of the heartbeat

FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of a laser with an oblong active aspect for an output power of seven hundred mW. The width of

This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by strong linear arrays of semiconductor injection lasers owning fiber output. To prevent spectral narrowing through amplification plus the corresponding lengthening in the amplified pulse when it really is compressed, a mix of two Yb:KYW crystals ended up used, While using the spectral maxima of the amplification shifted relative to one another and with spectral profiling in the amplified radiation.

Soon after air drying and subsequent cleansing having a cotton cloth soaked in Alcoholic beverages, the film surface confirmed no indications of peeling or scratches.

FIG. one. Optical structure of the laser with direct pumping With all the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output

Tungstates have a tendency to own superior Raman coefficients (�?Raman scattering). Therefore, they're able to make major Raman attain at average optical intensities. It can be done to utilize the laser crystal alone as a Raman converter.

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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to identical dimensions of these chemical elements around one hundred% of Yb-doping may be attained.

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