KYW Crystal Options
KYW Crystal Options
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is rather big when compared with that of Yb:YAG. This permits for broad wavelength tunability and for Considerably shorter pulse durations from method-locked lasers. Values effectively underneath one hundred fs have already been reached with passive method locking.
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Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
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Optical layout of the laser with direct 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 really a collimating lens, FL is usually a focusing lens, AE is really an active factor made from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC would be the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.
Adhesion Test Compliant more info with MIL-C-675C navy standards, an adhesion check concerned making use of a tape that fulfills LT-90 specs on to the lens film layer. The tape was affixed entirely and afterwards taken off vertically. This course of action was executed 3 times, leading to no blistering or peeling.
FIG. one. Optical layout of a laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output
Tungstates are inclined to have substantial Raman coefficients (�?Raman scattering). As a result, they could deliver significant Raman achieve at reasonable optical intensities. It can be done to utilize the laser crystal itself being a Raman converter.
For tungstates, the ytterbium doping focus can be very significant without having significant quenching since the changed ions have an extremely similar ion radius, along with the inter-ion distance is pretty big.
Substantial-electric power repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical applications
Although ytterbium-doped laser get media usually exhibit a small quantum defect, ytterbium-doped tungstates enable for significantly small values. By way of example, a 1030-nm Yb:YAG laser would normally be pumped around 940 nm, whereas Yb:KGW or Yb:KYW could possibly be most proficiently pumped all around 981 nm.
Li2WO4-WO3 flux was productively used lowering The expansion temperature below 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds towards the P2/n Place team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is usually a remarkable material that performs an essential position in laser technological know-how. Its Major perform is usually to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Question RP Photonics for just about any guidance about tungstate lasers, like femtosecond lasers and higher-ability lasers.