The 2-Minute Rule for BIBO Crystal
The 2-Minute Rule for BIBO Crystal
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BIBO crystal (bismuth triborate) is a comparatively novel nonlinear substance when compared with BBO and LBO crystals. BIBO crystal surpasses BBO regarding its powerful nonlinearity, even though also providing a broader bandgap in comparison to KTP crystal.
Laser processing and content managing: In the field of laser processing and material managing, the significant electric power functionality of BIBO crystals would make them a key part during the manufacture of high Vitality density laser beams.
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The selection from the best suited crystal material to get a offered software is commonly far from trivial; it really should entail the consideration of numerous aspects. One example is, a high nonlinearity for frequency conversion of ultrashort pulses doesn't enable When the interaction length is strongly constrained by a considerable team velocity mismatch and also the minimal injury threshold boundaries the applicable optical intensities.
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Even though the nonlinear coefficient of KTP crystal is huge, the laser harm threshold is very low, that may cause issues which include refractive index transform and transmission reduction. BIBO crystal has better laser destruction threshold and better next harmonic conversion efficiency. Despite the fact that LBO and B-BBO are quite possibly the most realistic, they are little in sizing and possess selected hygroscopicity, even though BIBO crystals are non-soaked and can expand to massive sizing. These positive aspects allow BIBO crystals to become extensively made use of.
Borates like LBO and BBO also get the job done properly in broadly tunable optical parametric oscillators and optical parametric chirped-pulse amplification.
In many conditions, a nonlinear crystal utilized for nonlinear frequency conversion has an extremely lengthy lifetime, that's for a longer time than that of The full laser method. The crystal material is actually not modified more info all through Procedure. On the other hand, a diminished crystal life span can take place under several situations:
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linear absorption, that may lead to heating at higher optical electrical power concentrations, so the section matching is disturbed, and thermal lensing may well happen
flux-developed KTP and RTP with its significant nonlinearity, also in variants with superior gray tracking resistance