The Greatest Guide To KYW Crystal
The Greatest Guide To KYW Crystal
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is rather large in comparison with that of Yb:YAG. This permits for broad wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values well down below 100 fs are already obtained with passive manner locking.
This exclusive attribute of ultrafast pulses enables nonlinear optical interaction with tissue at very low General exposure, and drives apps such as deep-tissue multiphoton microscopy and large-precision eye surgical procedure
We present a dual-crystal Yb:KGW laserthat iscapable to work as a Q-switched oscillator with output electricity as many as 24 W and pulse size of 20 ns,or like a regenerative amplifier with output electrical power around 21 W and pulse duration below two hundred fs immediately after compression of chirped pulses. Both equally lasers have great beam good quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Show sturdy peaks at 980 nm and 1030 nm, respectively, making sure productive Strength conversion and significant general performance in laser systems.
Optical layout of the laser with direct pumping While using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output in the radiation, WP is a fifty percent-wave plate, CL is a collimating lens, FL is often a focusing lens, AE is undoubtedly an Lively factor made from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC may be the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.
Adhesion Test Compliant with MIL-C-675C armed forces criteria, an adhesion exam included implementing a tape that satisfies LT-90 specifications on to the lens movie layer. The tape was affixed absolutely and after that removed vertically. This course of action was performed 3 times, leading to no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical characteristics owing to your existence of thulium ions, and as a consequence the materials might be more researched inside the scope of laser and luminescence programs.
Spatial construction from the beam and the corresponding depth profiles I for the output on the laser.
For tungstates, the ytterbium doping concentration can be extremely higher devoid of substantial more info quenching since the changed ions have a very equivalent ion radius, plus the inter-ion length is relatively huge.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW because of the similar measurements of these chemical features as many as 100% of Yb-doping can be reached.
Although ytterbium-doped laser gain media usually exhibit a little quantum defect, ytterbium-doped tungstates allow for for particularly small values. For example, a 1030-nm Yb:YAG laser would normally be pumped around 940 nm, Whilst Yb:KGW or Yb:KYW may very well be most proficiently pumped all over 981 nm.
This tandem of attributes has much-achieving implications, particularly in the construction of compact nevertheless powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at space temperature were being calculated. The emission spectrum and lifetime with the three File four psyched point out were determined. Making use of common and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes ended up calculated and good arrangement Together with the experimental outcomes was acquired for both of those theories.
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