Top KYW Crystal Secrets
Top KYW Crystal Secrets
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This special characteristic of ultrafast pulses permits nonlinear optical conversation with tissue at low All round exposure, and drives programs for example deep-tissue multiphoton microscopy and substantial-precision eye surgical procedures
We present a dual-crystal Yb:KGW laserthat iscapable to work as a Q-switched oscillator with output electricity approximately 24 W and pulse size of 20 ns,or being a regenerative amplifier with output electrical power as many as 21 W and pulse period beneath two hundred fs after compression of chirped pulses. Both equally lasers have fantastic beam top quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with immediate longitudinal pumping by powerful linear arrays of semiconductor injection lasers possessing fiber output. To avoid spectral narrowing through amplification as well as corresponding lengthening of your amplified pulse when it is compressed, a mix of two Yb:KYW crystals were being applied, Together with the spectral maxima of the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
In advance of the event of Nd:YAG, Nd3+:CaWO4 was an important unusual-earth-doped laser obtain medium. It was in fact Utilized in the very first constantly functioning crystal laser.
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Tungstates are likely to acquire high Raman coefficients (�?Raman scattering). As a result, they are able to produce significant Raman achieve at average optical intensities. It is possible to utilize the laser crystal alone as a Raman converter.
... at 50 %-top were produced in the learn oscillator with selfsynchronization on the axial modes, explained inside our before short article. 21 The new version on the laser, unlike that explained within our earlier article, used an Yb:KYW crystal with an N pcut (optical axis N p of your index ellipsoid was parallel on the propagation direction of your laser radiation), Together with the polarization from the website generated radiation directed alongside the N m axis.
Even so, after Nd3+:YAG turned commercially out there, the interest in CaWO4 dropped sharply. In afterwards many years, particular other tungstate crystals began to attract a lot of focus.
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Li2WO4-WO3 flux was correctly applied lowering the growth temperature underneath 900 oC. In keeping with solitary crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.
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