5 Simple Techniques For BBO Crystal
5 Simple Techniques For BBO Crystal
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This characteristic interprets to lessened need for in depth thermal administration devices, again accentuating Price tag price savings and program simplicity.
When the above technique delivers an excellent rule of thumb for LIDT values, be sure to Call Tech Guidance if your wavelength differs from the desired LIDT wavelength. In the event your power density is below the modified LIDT in the optic, then the optic should really get the job done for your personal application.
Optical transmission (OT): We use OT to evaluate the optical passage spectrum of our objects around their openness array. We assure our goods are devoid of absorption bands or scattering losses thanks to pollutants or problems.
As the next harmonic light-weight propagates, its Electrical power flows in a unique route than that of the elemental mild.
For beams having a significant PRF both the typical and peak powers needs to be when compared with the equivalent CW electrical power. Furthermore, for extremely clear products, There is certainly tiny to no drop in the LIDT with raising PRF.
Phase matching appreciably increases the conversion performance and can be necessary to get hold of enough frequency-doubled light-weight for programs, but 2nd harmonic era (SHG) will happen even though period matching is not really done. The result of section matching about the output intensity of SHG light-weight (I2ω) is illustrated in Figure sixteen.
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The vast majority of our typical crystals occur mounted into open ring holders. Remember to Be aware the letter "H" during the products code which implies that crystal is provided mounted.
The lifespan of BBO crystals will vary tremendously determined by a number read more of aspects. These consist of how the crystals are employed, how They are really taken care of, along with the situations by which They can be saved.
It is often necessary to concentrate the incident mild inside the crystal for SHG programs, since economical generation of second harmonic mild demands superior peak intensities, for example 109 W/cm2. When working with femtosecond pulses with average energies in the nanojoule range, obtaining the required peak intensities can require tiny focal places.
The performance from the SHG method decreases significantly as the fundamental beam diverges from its concentrate, since the pulse Power is dispersed across a bigger beam cross segment.
BBO nonlinear crystal is usually a adverse uniaxial crystal. It offers phase matching for a variety of second-buy interactions Just about above its complete transparency vary. This transparency ranges from 185 nm to 3.three µm, as inferred from transmittance measurements employing crystal samples of some mm thickness.
With suitable treatment and handling, BBO crystals can past for a few years. However, their lifespan may be shortened by aspects such as superior temperature, humidity, and Actual physical hurt. BBO crystals are robust and sturdy, but Like all optical element, they can degrade eventually if not adequately cared for.
As a result of its excellent properties BBO crystal contains a range of benefits for different purposes, like NOPA with fsec pulses, harmonics era (as many as fifth) of Nd:YAG and Nd:YLF lasers, frequency doubling or tripling of femtosecond Ti:Sapphire and dye lasers, OPO at Style one and Type two period-matching, E/O switching for Pockels cells and many other.