KYW Crystal Things To Know Before You Buy
KYW Crystal Things To Know Before You Buy
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is rather significant compared with that of Yb:YAG. This enables for extensive wavelength tunability and for A lot shorter pulse durations from method-locked lasers. Values nicely underneath 100 fs are already obtained with passive manner locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is a impressive substance that plays an important role in laser engineering. Its Most important functionality is to generate ultrashort pulses of light, spanning just a couple hundred femtoseconds.
We present a dual-crystal Yb:KGW laserthat iscapable to operate as being a Q-switched oscillator with output electric power as many as 24 W and pulse length of twenty ns,or like a regenerative amplifier with output power approximately 21 W and pulse period beneath two hundred fs following compression of chirped pulses. Both lasers have fantastic beam good quality with beam parameter M2
Coloration-coded reflectivity of a Bragg mirror for a perform of wavelength and angle of your incident beam.
Optical structure of the laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output with the radiation, WP is often a 50 percent-wave plate, CL is really a collimating lens, FL is really a focusing lens, AE is an Lively 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 usually a semiconductor saturable-absorber mirror.
The monoclinic crystal structures leads to a normal birefringence, helping to keep away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical functions owing towards the presence of thulium ions, and therefore the elements could possibly be further analyzed within the scope of laser and luminescence purposes.
five mm in addition to the center of your beam caustic. In an effort to Verify the method matching simulation, we performed the experiment with Ng-Slice crystal oscillator, which was created Earlier and in a very same condition with simulation [11]. As revealed in Determine three(b) with red dots and line, the CW output ability is highly dependent on the situation of laser crystal along with the experimental result coincides very well with simulation consequence. To be a Notice, multimode Procedure occurred in experiment in the event the sizing of the pump beam is much larger than TEM00 cavity mode and it results in larger CW output ability in the displacement region down below 3.5 mm.
For tungstates, the ytterbium doping concentration can be very large without the need of important quenching since the replaced ions have a very comparable ion radius, plus the inter-ion distance is fairly substantial.
... Not only the situation of crystal in the cavity but also the amplification axis of crystal impacts the laser operation greatly, since the absorption and emission cross sections on the crystal are really different based on the orientation of the crystal.
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This tandem of attributes has considerably-reaching implications, specifically in the construction of compact nonetheless powerfull lasers.
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