The susceptibility to moisture of BiBO may be very very low. Nonetheless, customers are suggested to supply dry problems for each use and storage of BiBO to prolong the lifetime. Drinking water condensation on crystal surfaces should be Definitely averted at any time.
If the crystal surfaces remain “filthy�?after the above cleansing processes, the surfaces might have been broken. Please contact us for rework with the crystals.
A lot of the normal nonlinear crystals like BBO, LBO, BiBO or KTP for frequency doubling, tripling and quadrupling of the elemental laser radiation can be found from inventory. Shopper-precise Proportions and AR coatings may also be made available at competitive prices.
Crystal life time may also be strongly depending on the fabric high-quality, While certain degradation phenomena seem like intrinsic constraints of the material.
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Dust and stains on crystal surfaces might cause scattering/reduction of sunshine and may even respond with light to wreck optical surfaces in a large incident laser electricity.
Notice that even if the nominal depth is under the nominal damage threshold, there may be challenges as a result of fluctuations in the beam electric power or local intensity (e.g., if a beam profile has “warm places�?, or because of isolated defects within a crystal, which happen to be additional delicate in comparison to the standard crystal material.
Procedure of nonlinear crystals at temperatures below space temperature (to obtain phase matching) is mostly problematic, as it might produce condensation of water about the crystal surfaces In the event the surrounding air just isn't really dry.
Even though the nonlinear coefficient of KTP crystal is substantial, the laser problems threshold is very low, that can trigger problems such as refractive index improve and transmission reduction. BIBO click here crystal has bigger laser hurt threshold and better 2nd harmonic conversion efficiency. Whilst LBO and B-BBO are by far the most functional, They can be little in dimensions and possess sure hygroscopicity, though BIBO crystals are non-moist and will develop to massive sizing. These pros help BIBO crystals for being extensively employed.
Excessive optical intensities all through Procedure may possibly instantly destruction a crystal. Unfortunately, nonlinear crystals often have to be operated not significantly from their optical destruction threshold to attain a adequately high conversion performance. This implies a trade-off among conversion effectiveness and crystal life span.
Even well below the brink for instant damage, some crystal resources exhibit a steady degradation within the made use of quantity, e.
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Optical crystals can exhibit distinctive kinds of optical nonlinearities, which can be used in several methods:
Substantial Harm Threshold: BIBO crystal provides a significant harm threshold, making it possible for it to face up to higher laser electricity with out struggling damage. This characteristic will make BIBO suitable for use in superior-electricity laser units.