This efficiency is important, particularly when just one considers the technology with the 266nm wavelength, exactly where even minor inefficiencies can result in considerable Electrical power losses.
Hi, thanks for making contact with Thorlabs. The wavelength ranges of 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]
In the event the Rayleigh variety is a lot less than the crystal thickness, the distance over which the beam is optimally powerful is a lot less than the crystal thickness.
Thorlabs expresses LIDT for CW lasers being a linear electricity density calculated in W/cm. With this routine, the LIDT supplied as being a linear ability density is often applied to any beam diameter; a single will not ought to compute an adjusted LIDT to regulate for changes in spot dimension, as shown from the graph to the proper. Regular linear energy density might be calculated utilizing the equation below.
The seed crystal is a little bit BBO crystal with a distinct positioning along amongst its principal axes. The seed crystal is affixed into a turning rod that dips into your thaw surface area location.
Significant damage threshold: BBO crystals have large problems limits which can stand up to their large prime and common electricity devoid of degradation or damage.
Their supremacy During this area is not simply by accident, but a result of their intrinsic and meticulously crafted Attributes.
When one of these β-BBO Crystals is mounted in the RSP1 mount, the crystal is going to be centered in excess of the eight-32 (M4) gap during the mount's base without the want for spacers.
In quasi-period matching, the crystal substance is “poled�?to possess up and down domains to counteract the phase-mismatch of the fabric, the place the poling interval is precise to your wavelengths of conversation.
Compact acceptance angle: BBO crystals have a little acceptance angle that limits the enter light-weight beam’s mild beam divergence and major manner good quality for efficient regularity conversion.
Dust and stains on crystal surfaces may cause scattering/reduction of sunshine and can even react with light to break optical surfaces at a higher incident laser electric power.
The production of Beta-Barium Borate (BBO) crystals is a posh and meticulous course of action that needs a higher degree of precision and know-how. This method, referred to as the flux method, starts While using the planning of a combination of barium borate and barium fluoride.
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This can make them remarkably tough and resilient, even further maximizing their suitability for difficult optical applications.