Top KYW Crystal Secrets
Top KYW Crystal Secrets
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This exclusive characteristic of ultrafast pulses enables nonlinear optical interaction with tissue at very low In general exposure, and drives apps for example deep-tissue multiphoton microscopy and higher-precision eye operation
We present a dual-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output ability as much as 24 W and pulse length of twenty ns,or for a regenerative amplifier with output electric power up to 21 W and pulse duration below two hundred fs right after compression of chirped pulses. Both equally lasers have exceptional beam top quality with beam parameter M2
FIG. 4. Autocorrelation function of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong Lively element for an output electricity of seven-hundred mW. The width of
Optical structure of a laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output on the radiation, WP is usually a half-wave plate, CL is really a collimating lens, FL is actually a focusing lens, AE is really an Lively component constructed from an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 will be the cavity mirrors, OC would more info be the output mirror, and SAM is often a semiconductor saturable-absorber mirror.
In advance of the event of Nd:YAG, Nd3+:CaWO4 was a vital scarce-earth-doped laser achieve medium. It had been actually Utilized in the 1st consistently working crystal laser.
FIG. one. Optical structure of the laser with immediate pumping While using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
A substantial brightnessQ-switched oscillator and regenerative amplifier according to a twin-crystal Yb:KGW laser
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On the other hand, after Nd3+:YAG became commercially readily available, the curiosity in CaWO4 dropped sharply. In afterwards yrs, specific other tungstate crystals began to appeal to a lot of awareness.
The thermal conductivity of widespread double tungstates is of your purchase to 3–4 W/(K m) �?which isn't negative as opposed with other laser crystals (Even though numerous periods a lot less than for YAG), and relatively large as opposed Along with the thermal conductivity of standard glasses.
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