This effectiveness is significant, particularly when just one considers the generation in the 266nm wavelength, the place even slight inefficiencies can cause major Electrical power losses.
Howdy, thanks for making contact with Thorlabs. The wavelength ranges with the antireflective coatings on these β-BBO crystals align With all the respective wavelength bands that these crystals are optimized for. Requests for customizations might be created by reaching out to us at [email protected]
Their substantial injury threshold and great thermal steadiness make them suitable for use in significant-electrical power laser systems, when their huge transparency assortment lets them to operate that has a wide variety of laser wavelengths.
) is the key for BBO to obtain high conversion efficiency. Restricted target of laser beam will not be advised.
For beams with a higher PRF both the standard and peak powers have to be when compared with the equal CW electric power. On top of that, for highly transparent resources, There may be minor to no fall while in the LIDT with increasing PRF.
Period matching drastically increases the conversion efficiency and can be necessary to obtain enough frequency-doubled light-weight for purposes, but second harmonic generation (SHG) will arise whether or not phase matching is just not done. The outcome of stage matching about the output intensity of SHG mild (I2ω) is illustrated in Determine 16.
Temperature amount sensitivity: BBO crystals temperature sensitivity affects their refractive indices and likewise section-matching difficulties. This wants temperature stage stabilizing or tuning applications to maintain the best possible performance.
When a person of those β-BBO Crystals is mounted while in the RSP1 mount, the crystal will probably be centered about the eight-32 (M4) hole from the mount's base without the have to have for spacers.
The spatial wander-off angle relies on the dimensions with the beam plus the crystal length. Whilst the angle is often important, it is frequently tiny, usually around the get of ten mrad, and can be neglected.
For instance, anti-reflective coatings can be placed on cut down light-weight reduction as a consequence of reflection, even though protective coatings may be used to increase the crystal’s resistance to environmental components. Customization allows for exceptional effectiveness in certain apps.
These crystals are unique due to their ability to change the frequency of sunshine passing as a result of them, a assets that is very wanted in several fields for example laser technologies and quantum physics. The versatility of BBO crystals can make them a vital part in lots of Innovative optical programs.
The spectrally narrowed SHG pulse spectrum is alleged being apodized, since an effect of the elemental pulse exceeding the utmost enter bandwidth Restrict is definitely the removing of the very best and most affordable frequencies in click here the SHG pulse spectrum.
BBO crystals even have a substantial harm threshold, meaning they might withstand substantial amounts of laser ability with out struggling problems. This is especially vital in applications involving superior-power lasers. In addition, BBO crystals Have a very large nonlinear coefficient, which enables economical frequency conversion, a crucial perform in several optical methods.
Even if the crystal material or coating isn't sensitive to water, little drinking water droplets might aim laser radiation additional tightly than less than ordinary Procedure, and therefore damage the crystal materials.