Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The get bandwidth e.g. of Yb:KGW and Yb:KYW may be very massive compared with that of Yb:YAG. This enables for huge wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values effectively underneath one hundred fs are actually achieved with passive mode locking.
This exceptional characteristic of ultrafast pulses permits nonlinear optical conversation with tissue at reduced In general exposure, and drives purposes for example deep-tissue multiphoton microscopy and superior-precision eye medical procedures
We present a dual-crystal Yb:KGW laserthat iscapable to operate being a Q-switched oscillator with output ability up to 24 W and pulse length of twenty ns,or to be a regenerative amplifier with output energy as much as 21 W and pulse duration down below two hundred fs soon after compression of chirped pulses. The two lasers have outstanding beam high quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals display strong peaks at 980 nm and 1030 nm, respectively, making sure effective Electrical power conversion and significant effectiveness in laser systems.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to the related dimensions of such chemical elements around one hundred% of Yb-doping could be realized. This exceptional attribute permits ytterbium to go ahead and take put of yttrium with virtually no disruption for the crystal’s lattice.
The monoclinic crystal structures results in a natural birefringence, assisting to prevent thermally induced polarization rotation and depolarization loss.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and are made use of as lasing products to deliver ultrashort (~ a hundred-200 fs) substantial electric power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser devices.
Tungstates have a tendency to possess superior Raman coefficients (�?Raman scattering). Consequently, they could deliver significant Raman acquire at moderate optical intensities. It is achievable to make use of the laser crystal by itself as being a Raman converter.
... at half-height were being generated within a master oscillator with selfsynchronization of the axial modes, explained in our before short article. 21 The new version of the laser, compared with that described inside our previously post, made use of an Yb:KYW crystal using an N pcut (optical axis N p on the index ellipsoid was parallel towards the propagation course of your laser radiation), with the polarization of the generated radiation directed along the N m axis.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the similar measurements of these click here chemical components as many as one hundred% of Yb-doping may very well be accomplished.
While ytterbium-doped laser acquire media normally show a little quantum defect, ytterbium-doped tungstates make it possible for for notably compact values. For instance, a 1030-nm Yb:YAG laser would normally be pumped around 940 nm, Whilst Yb:KGW or Yb:KYW can be most competently pumped all over 981 nm.
Li2WO4-WO3 flux was efficiently utilized reducing the growth temperature under 900 oC. In keeping with single crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is actually a impressive material that plays an important part in laser technological innovation. Its Most important purpose is to generate ultrashort pulses of light, spanning just some hundred femtoseconds.
Request RP Photonics for any assistance regarding tungstate lasers, including femtosecond lasers and large-electrical power lasers.