KYW Crystal Secrets
KYW Crystal Secrets
Blog Article
In sensible conditions, the Yb:KYW crystal has uncovered its specialized niche in significant-electric power laser purposes as a result of its ability to make superior Power ultrashort laser pulses even though maintaining a compact dimension. The interaction of its features �?seamless ytterbium substitution, solid absorption traits, ultrashort pulse generation and performance in Vitality conversion �?positions the Yb:KYW crystal like a cornerstone within the laser technological know-how, covering diverse fields ranging from scientific analysis to industrial programs.
The comparison with glasses is suitable since the huge get bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
The Yb:KYW crystal’s proficiency in mild absorption at around 981 nm would make the crystal well suited for diode pumping. It is actually even further Increased by its remarkable efficiency in this process, coupled with its very low quantum defect.
Color-coded reflectivity of a Bragg mirror as being a purpose of wavelength and angle of the incident beam.
Optical format of the laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output in the radiation, WP is actually a fifty percent-wave plate, CL is a collimating lens, FL can be a focusing lens, AE is definitely an Lively factor made out of an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC is definitely the output mirror, and SAM is a semiconductor saturable-absorber mirror.
Adhesion Test Compliant with MIL-C-675C armed forces benchmarks, an adhesion examination involved implementing a tape that fulfills LT-90 specs onto the lens film layer. The tape was affixed absolutely and afterwards eliminated vertically. This course of action was performed 3 times, causing no blistering or peeling.
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A high brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
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... Not just the place of crystal from the cavity but additionally the amplification axis of crystal affects the laser Procedure enormously, since the absorption and emission cross sections of the crystal are rather various according to the orientation on the crystal.
Although ytterbium-doped laser attain media commonly exhibit a small quantum defect, ytterbium-doped tungstates make it possible for for especially modest values. Such as, a 1030-nm Yb:YAG laser would Ordinarily be pumped all around 940 nm, Whilst Yb:KGW or Yb:KYW could be most proficiently pumped close to 981 nm.
Li2WO4-WO3 flux was productively applied lessening the growth temperature underneath 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds into the P2/n Place team.
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Inquire RP Photonics for any advice concerning tungstate lasers, like femtosecond lasers and higher-ability lasers.