Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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In realistic phrases, the Yb:KYW crystal has observed its area of interest in high-ability laser applications due to its capability to make high Electricity ultrashort laser pulses though protecting a compact sizing. The interaction of its functions �?seamless ytterbium substitution, potent absorption traits, ultrashort pulse technology and efficiency in Power conversion �?positions the Yb:KYW crystal as a cornerstone while in the laser technological know-how, covering varied fields ranging from scientific study to industrial purposes.
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We current a twin-crystal Yb:KGW laserthat iscapable to operate like a Q-switched oscillator with output electric power as many as 24 W and pulse size of twenty ns,or like a regenerative amplifier with output power as many as 21 W and pulse length beneath 200 fs following compression of chirped pulses. Both of those lasers have great beam top quality with beam parameter M2
Coloration-coded reflectivity of a Bragg mirror as being a perform of wavelength and angle of your incident beam.
Optical format of the laser with immediate pumping Using the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output in the radiation, WP is often a half-wave plate, CL is really a collimating lens, FL is actually a focusing lens, AE is undoubtedly an active element created from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC could be the output mirror, and SAM is often a semiconductor saturable-absorber mirror.
Immediately after air drying and subsequent cleaning using a cotton cloth soaked in alcohol, the film surface confirmed no signs of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and therefore are made use of as lasing resources to deliver ultrashort (~ 100-200 fs) high electrical power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser systems.
Tungstates have a tendency to have superior Raman coefficients (�?Raman scattering). Hence, they will deliver significant Raman achieve at average optical intensities. It is possible to use the laser crystal alone to be a Raman converter.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW because of the equivalent sizes of such chemical components nearly a hundred% of Yb-doping may be attained.
Whilst ytterbium-doped laser obtain media frequently exhibit a little quantum defect, ytterbium-doped tungstates enable for significantly little values. As an example, a 1030-nm Yb:YAG laser would normally be pumped all over 940 nm, Whilst Yb:KGW or Yb:KYW might be most proficiently pumped all-around 981 nm.
Li2WO4-WO3 flux was efficiently used lowering The expansion temperature beneath 900 oC. In line with one crystal x-ray measurements, the crystal corresponds for the P2/n House group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is often a extraordinary materials that plays a very important purpose in laser technology. Its Principal functionality is to generate ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
At the same time, click here a shorter laser wavelength might be attained; it can be done to function having a quantum defect very well below 1%. For a consequence, the warmth technology is usually so little this partly compensates the reduced thermal conductivity.