New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW may be very big when compared with that of Yb:YAG. This permits for broad wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values well beneath 100 fs are already realized with passive manner locking.
This special characteristic of ultrafast pulses allows nonlinear optical interaction with tissue at small In general exposure, and drives apps such as deep-tissue multiphoton microscopy and substantial-precision eye surgical procedure
Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing in the regenerative amplifier by spectral profiling of the heartbeat
The absorption and emission spectra of Yb:KYW Crystals Show robust peaks at 980 nm and 1030 nm, respectively, guaranteeing successful Electrical power conversion and superior overall performance in laser methods.
Optical format of the laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output on the radiation, WP is actually a half-wave plate, CL can be a collimating lens, FL is really a concentrating lens, AE is definitely an Energetic ingredient made out of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
Immediately after air drying and subsequent cleaning that has a cotton cloth soaked in Liquor, the movie surface confirmed no signs of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are applied as lasing elements to make ultrashort (~ 100-two hundred fs) significant electricity pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser methods.
5 mm apart from the middle with the beam caustic. So as to Check out the method matching simulation, we performed the experiment with Ng-Slash crystal oscillator, which was formulated Formerly and in a identical issue with simulation [11]. As revealed in Figure three(b) with crimson dots and line, the CW output power is very dependent on the situation of laser crystal along with the experimental result coincides very well with simulation outcome. To be a Be aware, multimode Procedure happened in experiment once the dimension of your pump beam is more substantial than TEM00 cavity manner and it causes increased CW output ability within the displacement location underneath three.five mm.
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... Not just the placement of crystal while in the cavity and also the amplification axis of crystal has an effect on the laser Procedure drastically, as the absorption click here and emission cross sections of your crystal are pretty distinctive in accordance with the orientation with the crystal.
Whilst ytterbium-doped laser obtain media normally exhibit a small quantum defect, ytterbium-doped tungstates enable for specially smaller values. Such as, a 1030-nm Yb:YAG laser would normally be pumped all-around 940 nm, Whilst Yb:KGW or Yb:KYW can be most competently pumped all-around 981 nm.
Li2WO4-WO3 flux was efficiently used reducing the growth temperature underneath 900 oC. According to single crystal x-ray measurements, the crystal corresponds on the P2/n Place team.
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