The Single Best Strategy To Use For KYW Crystal
The Single Best Strategy To Use For KYW Crystal
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This distinctive characteristic of ultrafast pulses enables nonlinear optical interaction with tissue at lower Over-all exposure, and drives programs for instance deep-tissue multiphoton microscopy and high-precision eye medical procedures
We existing a twin-crystal Yb:KGW laserthat iscapable to operate as being a Q-switched oscillator with output electric power up to 24 W and pulse length of twenty ns,or as being a regenerative amplifier with output electric power approximately 21 W and pulse length underneath two hundred fs soon after compression of chirped pulses. The two lasers have excellent beam high quality with beam parameter M2
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Optical format of a laser with immediate pumping Using the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output in the radiation, WP is often a 50 percent-wave plate, CL can be a collimating lens, FL can be a focusing lens, AE is definitely an Energetic ingredient comprised of an Yb:KYW crystal, DM is often a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC is definitely the output mirror, and SAM is often a semiconductor saturable-absorber mirror.
The monoclinic crystal buildings ends in a purely natural birefringence, assisting to steer clear of thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra reveal optical characteristics owing on the existence of thulium ions, and as a consequence the supplies could possibly be even more researched during the scope of laser and luminescence applications.
5 mm apart from the middle of the beam caustic. In order to Check out the mode matching simulation, we executed the experiment with Ng-Lower crystal oscillator, which was formulated Beforehand and in a similar problem with simulation [11]. As demonstrated in Determine three(b) with purple dots and line, the CW output ability is very depending on the placement of laser crystal along with the experimental end result coincides perfectly with simulation consequence. For a Notice, multimode operation happened in experiment if the size with the pump beam is larger sized than TEM00 cavity method and it causes increased CW output electricity within the displacement location beneath 3.five mm.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW due to very similar sizes of such chemical components up to one hundred% of Yb-doping might be accomplished.
The thermal conductivity of widespread double tungstates is of the get to 3–four W/(K m) �?which isn't terrible when compared with other laser crystals (Though many instances a lot less than for YAG), and relatively large compared While using the thermal conductivity of normal glasses.
This tandem here of attributes has considerably-reaching implications, specifically in the development of compact nevertheless powerfull lasers.
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