Fascination About a-BBO Crystal
Fascination About a-BBO Crystal
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The significant harm threshold of BBO crystals is particularly critical in environments where significant-depth lasers will be the norm. Traditional elements may well falter, degrade, or simply break less than such intensities.
The group velocities of the fundamental and second harmonic pulses are also distinctive, even though section-matched, as well as the magnitude from the group velocity mismatch will depend on the crystal properties and also the optical frequencies from the pulses.
Hello there, thanks for making contact with Thorlabs. The wavelength ranges from the antireflective coatings on these β-BBO crystals align Together with the respective wavelength bands that these crystals are optimized for. Requests for customizations can be made by reaching out to us at [email protected]
The phase matching angle could be altered by rotating the crystal within the y axis. An adjustment that is typically in just a couple of degrees can both improve the functionality with the crystal from the set up or match One more basic frequency within the crystal's working assortment.
Irrespective of whether it’s in the event of far more productive lasers, the exploration of quantum phenomena, or the development of new optical equipment, BBO crystals will undoubtedly carry on to Enjoy a pivotal part.
The performance from the SHG procedure decreases significantly as the fundamental beam diverges from its focus, Considering that the pulse Strength is distributed across a larger beam cross area.
Their superior problems threshold and fantastic thermal stability make them ideal for use in high-ability laser units, though their extensive transparency selection will allow them to work with a broad selection of laser website wavelengths.
As illustrated in the subsequent desk, the shorter the crystal, the broader the reference pulse spectrum. The table beneath assumes a basic Middle wavelength during the close to-IR.
Now Look at the utmost energy density to that which is specified because the LIDT for that optic. If your optic was examined at a wavelength other than your working wavelength, the damage threshold must be scaled appropriately [3].
The temporal walk-off of the slower pulse with respect towards the quicker may be a substantial portion of the heartbeat length. This can be illustrated in Figure 22.
Each side of BBO, from its atomic structure to its broad software spectrum, underscores its pivotal function in modern science and technological know-how.
For beams having a higher PRF both the standard and peak powers needs to be as compared to the equal CW electrical power. In addition, for remarkably transparent products, There exists small to no fall within the LIDT with expanding PRF.
When laser gentle is targeted into a spot, the diameter from the beam waist is the focal location dimensions, and the speed at which the light diverges in the beam waist is connected to the Rayleigh array (zR).
This informative article dives deep into the benefits and unique Homes of BBO crystal and its paramount great importance in productive frequency doubling and harmonics technology at 266nm.