Not known Details About KYW Crystal
Not known Details About KYW Crystal
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We existing a twin-crystal Yb:KGW laserthat iscapable to work to be a Q-switched oscillator with output power as much as 24 W and pulse length of twenty ns,or to be a regenerative amplifier with output ability nearly 21 W and pulse duration beneath two hundred fs soon after compression of chirped pulses. Equally lasers have outstanding beam high quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Show robust peaks at 980 nm and 1030 nm, respectively, guaranteeing productive Electricity conversion and significant effectiveness in laser units.
Optical layout of the laser with direct pumping with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output in the radiation, WP is a 50 percent-wave plate, CL is a collimating lens, FL is often a concentrating lens, AE is undoubtedly an Lively component constructed from an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC would be the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
Before the event of Nd:YAG, Nd3+:CaWO4 was a very important uncommon-earth-doped laser achieve medium. It had been in truth Employed in the 1st consistently functioning crystal laser.
FIG. one. Optical layout of the laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is surely KYW Crystal an IPG Photonics laser diode with fiber output
5 mm in addition to the middle with the beam caustic. As a way to Verify the manner matching simulation, we done the experiment with Ng-Lower crystal oscillator, which was created Beforehand and in a same affliction with simulation [11]. As revealed in Determine three(b) with red dots and line, the CW output electric power is highly depending on the place of laser crystal as well as experimental end result coincides well with simulation end result. As a Notice, multimode Procedure happened in experiment once the dimensions of the pump beam is greater than TEM00 cavity method and it causes greater CW output electricity during the displacement region beneath 3.5 mm.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical things approximately 100% of Yb-doping can be reached.
The thermal conductivity of frequent double tungstates is of the buy to three–4 W/(K m) �?which isn't negative compared with other laser crystals (While numerous periods under for YAG), and rather big when compared with the thermal conductivity of usual glasses.
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Request RP Photonics for virtually any suggestions about tungstate lasers, such as femtosecond lasers and significant-energy lasers.