KYW Crystal - An Overview
KYW Crystal - An Overview
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This exclusive attribute of ultrafast pulses allows nonlinear optical interaction with tissue at lower All round publicity, and drives programs which include deep-tissue multiphoton microscopy and substantial-precision eye surgical treatment
We current a dual-crystal Yb:KGW laserthat iscapable to function being a Q-switched oscillator with output electric power as many as 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output electricity approximately 21 W and pulse length beneath two hundred fs after compression of chirped pulses. Equally lasers have outstanding beam top quality with beam parameter M2
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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 avoid spectral narrowing for the duration of amplification along with the corresponding lengthening in the amplified pulse when it's compressed, a mix of two Yb:KYW crystals have been utilized, with the spectral maxima with the amplification shifted relative to each other and with spectral profiling with the amplified radiation.
Prior to the event of Nd:YAG, Nd3+:CaWO4 was a vital unusual-earth-doped laser attain medium. It was the truth is Employed in the first continually running crystal laser.
FIG. 1. Optical format of a laser with immediate pumping Using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output
Tungstates are inclined to get higher Raman coefficients (�?Raman scattering). As a result, they're able to create substantial Raman gain at average optical intensities. It is achievable to make use of the laser crystal itself to be a Raman converter.
For tungstates, the ytterbium doping concentration can be extremely large without the need of considerable quenching since the changed ions have an exceptionally comparable ion radius, as well as inter-ion length is pretty big.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to the equivalent sizes of such chemical aspects as much as one hundred% of Yb-doping could be obtained.
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Yb:KYW more info crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is really a outstanding content that plays an essential function in laser technologies. Its Main function will be to make ultrashort pulses of light, spanning just some hundred femtoseconds.
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