The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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This unique characteristic of ultrafast pulses allows nonlinear optical interaction with tissue at small In general publicity, and drives apps for example deep-tissue multiphoton microscopy and substantial-precision eye operation
We current a dual-crystal Yb:KGW laserthat iscapable to work to be a Q-switched oscillator with output ability approximately 24 W and pulse duration of 20 ns,or like a regenerative amplifier with output electricity around 21 W and pulse duration down below 200 fs following compression of chirped pulses. Both lasers have excellent beam excellent with beam parameter M2
Shade-coded reflectivity of the Bragg mirror as a functionality of wavelength and angle of your incident beam.
Optical structure of a laser with direct pumping with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output of the radiation, WP is often a 50 %-wave plate, CL is often a collimating lens, FL can be a focusing lens, AE is surely an Energetic factor made from an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC would be the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
The monoclinic crystal buildings ends in a pure birefringence, assisting to prevent thermally induced polarization rotation and depolarization decline.
FIG. 1. Optical structure of a laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
five mm other than the center in the beam caustic. To be able to Look at the method matching simulation, we performed the experiment with Ng-cut crystal oscillator, which was made Beforehand and in a similar issue with simulation [11]. As revealed in Figure three(b) with crimson dots and line, the CW output power is extremely dependent on the situation of laser crystal as well as experimental consequence coincides effectively with simulation result. For a Notice, multimode Procedure transpired in experiment in the event the measurement from the pump beam is much larger than TEM00 cavity mode and it results in larger CW output ability inside the displacement region under 3.5 mm.
For tungstates, the ytterbium doping concentration can be extremely higher without significant quenching since the changed ions click here have a very very similar ion radius, plus the inter-ion distance is pretty huge.
... Not only the situation of crystal within the cavity but will also the amplification axis of crystal influences the laser Procedure considerably, because the absorption and emission cross sections in the crystal are very unique in accordance with the orientation with the crystal.
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Li2WO4-WO3 flux was efficiently used decreasing The expansion temperature down below 900 oC. In line with one crystal x-ray measurements, the crystal corresponds towards the P2/n Place team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared with its counterpart Yb:KGW, is usually a remarkable product that performs a significant purpose in laser technology. Its Most important functionality will be to make ultrashort pulses of light, spanning just some hundred femtoseconds.
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