A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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In realistic phrases, the Yb:KYW crystal has observed its area of interest in significant-power laser applications because of its capability to create higher Power ultrashort laser pulses while protecting a compact dimensions. The interplay of its attributes �?seamless ytterbium substitution, potent absorption features, ultrashort pulse technology and performance in Vitality conversion �?positions the Yb:KYW crystal like a cornerstone in the laser technological innovation, covering varied fields starting from scientific analysis to industrial purposes.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is really a exceptional content that plays a vital purpose in laser technological know-how. Its Main perform would be to crank out ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
We present a twin-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output electric power nearly 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output electricity approximately 21 W and pulse length beneath two hundred fs just after compression of chirped pulses. Both of those lasers have great beam excellent with beam parameter M2
Color-coded reflectivity of a Bragg mirror for a perform of wavelength and angle from the incident beam.
Optical format of a laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output in the radiation, WP is often a 50 percent-wave plate, CL is a collimating lens, FL is usually a concentrating lens, AE is undoubtedly an Lively ingredient created from an Yb:KYW crystal, DM can be 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.
Adhesion Check Compliant with MIL-C-675C army criteria, an adhesion exam associated implementing a tape that satisfies LT-ninety technical specs on to the lens movie layer. The tape was affixed thoroughly after which taken out vertically. This treatment was executed thrice, causing no blistering or peeling.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and are made use of as lasing products to crank out ultrashort (~ 100-two hundred fs) substantial electrical power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser programs.
5 mm aside from the middle of your beam caustic. So as to Test the method matching simulation, we performed the experiment with Ng-Slash crystal oscillator, which was formulated Formerly As well as in a similar problem with simulation [eleven]. As demonstrated in Determine 3(b) with purple dots and line, the CW output electrical power is very click here dependent on the place of laser crystal and the experimental end result coincides nicely with simulation consequence. As being a Observe, multimode Procedure occurred in experiment if the sizing in the pump beam is larger sized than TEM00 cavity mode and it triggers better CW output energy while in the displacement region under three.5 mm.
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... Don't just the position of crystal within the cavity but additionally the amplification axis of crystal impacts the laser operation significantly, because the absorption and emission cross sections of the crystal are rather unique based on the orientation in the crystal.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is often a amazing substance that plays a crucial function in laser technologies. Its Main functionality should be to make ultrashort pulses of light, spanning just some hundred femtoseconds.
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