Not known Facts About LBO Crystal
Not known Facts About LBO Crystal
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The ideal angle is determined by the type of nonlinear procedure, the wavelength, as well as the crystal thickness. Other strategies for achieving phase-matching in LBO nonlinear crystals contain temperature tuning and quasi-stage matching.
LBO has these great transmittance that it may even be accustomed to produce 266 nanometer light-weight, Even though the absorption underneath 300nm is normally also substantial with the conversion to become useful. It also shows Superb performance for frequency conversion generally speaking.
We provide precision oven and temperature controller to maintain LBO crystals at a preset temperature for noncritical phasematching (NCPM) for SHG and OPO/OPA. Crystals could possibly be pre-put in into your oven totally free within our factory for the ease.
Final but not the very least, large optical homogeneity makes sure uniform light propagation through the crystal, causing improved beam top quality and less distortions.
Dennis is really an engineer with around forty five yrs of working experience in fabrication, tests, and materials evaluation for prime precision optics, with comprehensive hands-on knowledge. Additional around the writer are available in this article.
Operation of nonlinear crystals at temperatures underneath place temperature (to accomplish phase matching) is mostly problematic, as it may produce condensation of water to the crystal surfaces When the surrounding air click here will not be incredibly dry.
LBO can attain each temperature NCPM and spectral NCPM (with an exceptionally vast spectral bandwidth) at 1300 nm. This is often favorable for your SHG of really broadband or ultrafast pulses at ~ 1300 nm.
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In lots of situations, a nonlinear crystal useful for nonlinear frequency conversion has an incredibly very long lifetime, which can be for a longer time than that of the whole laser process. The crystal materials is actually not modified throughout Procedure. Having said that, a minimized crystal life time can occur underneath numerous instances:
This chapter discusses in detail the various crystal progress methods utilized for the production of LBO nonlinear crystals.
SHG measurement may be used to find out the nonlinear optical coefficients of LBO nonlinear crystals, and that is important for optimizing their functionality in numerous purposes.
PL spectroscopy is a strong strategy for characterizing the luminescent Houses of LBO nonlinear crystals. PL spectroscopy consists of shining a laser beam on to the crystal and measuring the emitted light-weight at distinct wavelengths.
flux-grown KTP and RTP with its higher nonlinearity, also in variants with substantial grey tracking resistance
Crystals which are non-critically section-matched in a crystal oven could show challenges in the event the crystal temperature is modified way too promptly or much too often. Especially, anti-reflection coatings may very well be harmed resulting from diverse thermal expansion coefficients of the associated resources.