New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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In functional phrases, the Yb:KYW crystal has located its area of interest in superior-power laser purposes due to its power to deliver significant Electricity ultrashort laser pulses though keeping a compact measurement. The interplay of its options �?seamless ytterbium substitution, sturdy absorption attributes, ultrashort pulse generation and performance in Strength conversion �?positions the Yb:KYW crystal as being a cornerstone during the laser know-how, covering varied fields ranging from scientific exploration to industrial applications.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is often a remarkable material that plays an essential part in laser technologies. Its Major perform is always to produce ultrashort pulses of light, spanning only a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in light absorption at close to 981 nm helps make the crystal like minded for diode pumping. It can be even further Improved by its exceptional efficiency in this method, coupled with its lower quantum defect.
Coloration-coded reflectivity of the Bragg mirror as being a functionality of wavelength and angle from the incident beam.
Optical layout of a laser with immediate pumping Along with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output from the radiation, WP is usually a 50 percent-wave plate, CL is actually a collimating lens, FL is a concentrating lens, AE is an Energetic ingredient constructed from an Yb:KYW crystal, DM is really a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC may be the output mirror, and SAM is often a semiconductor saturable-absorber mirror.
Adhesion Examination Compliant with MIL-C-675C armed service standards, an adhesion check concerned making use of a tape that fulfills LT-90 specs onto the lens film layer. The tape was affixed entirely after which you can removed vertically. This process was performed three times, causing no blistering or peeling.
Raman, luminescence and transmission spectra expose optical options owing towards the presence of thulium ions, and thus the resources may very well be additional studied within the scope of laser and luminescence applications.
five mm aside from the center of your beam caustic. In order to Look at the method matching simulation, we carried out the experiment with Ng-Reduce crystal oscillator, which was developed Beforehand and in a same situation with simulation [eleven]. As demonstrated in Figure three(b) with crimson dots and line, the CW output energy is very dependent on the situation of laser crystal along with the experimental end result coincides nicely with simulation consequence. As being a Take note, multimode operation transpired in experiment in the event the dimension from the pump beam is much larger than TEM00 cavity mode and it brings about better CW output energy while in the displacement location down below three.5 mm.
... at 50 percent-height were created in a very grasp oscillator with selfsynchronization from the axial modes, explained within our earlier article. 21 The new edition in the laser, in contrast to that explained within our before report, utilized an Yb:KYW crystal with an N pcut (optical axis N p with the index ellipsoid was parallel for the propagation way on the laser radiation), Using the polarization with the generated radiation directed alongside the N m axis.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW website due to the identical measurements of those chemical aspects as much as a hundred% of Yb-doping may very well be reached.
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Li2WO4-WO3 flux was correctly applied minimizing The expansion temperature below 900 oC. In accordance with solitary crystal x-ray measurements, the crystal corresponds into the P2/n space team.
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Simultaneously, a shorter laser wavelength could be obtained; it can be done to function having a quantum defect well underneath 1%. For a consequence, the heat technology could be so small that this partly compensates the lower thermal conductivity.