Top BBO Crystal Secrets
Top BBO Crystal Secrets
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The two broad-bandwidth pulses and temporal wander-off result in a reduction during the conversion efficiency, along with worsen the optical good quality of the 2nd harmonic pulses. The suitable crystal thickness need to be picked out to reduce both of those outcomes.
When the above mentioned treatment presents a very good guideline for LIDT values, be sure to Speak to Tech Support if your wavelength differs from the desired LIDT wavelength. In case your power density is under the adjusted LIDT of your optic, then the optic ought to work to your software.
These Qualities make BBO crystals remarkably desirable in numerous purposes, from laser frequency conversion to electro-optic modulation. Their vast transparency selection allows them to work having a wide range of laser wavelengths, although their high problems threshold guarantees they could manage large-ability laser beams without degradation.
) is The important thing for BBO to get higher conversion effectiveness. Limited target of laser beam just isn't encouraged.
Wide openness selection: BBO crystals have a large openness array from 189 nm to 3500 nm, covering ultraviolet, noticeable, and around-infrared areas. This allows BBO crystals for use for varied laser resources with different wavelengths.
They exhibit fantastic homogeneity more than massive volumes and possess a large harm threshold, but are hygroscopic and have a minimal nonlinearity.
β-BBO Crystal—a extensively utilised nonlinear crystal for frequency conversion in the ultraviolet, noticeable and in the vicinity of-infrared
Offered these applications, it’s obvious why BBO, with its inherent ability to effectively generate the 266nm wavelength, is so really prized. The crystal’s one of a kind nonlinear optical Attributes empower the conversion of other wavelengths to the coveted 266nm mild, guaranteeing that scientists and industries have access to this critical Instrument.
High-precision laser microfabrication is a technique where by products are processed and modified on a microscopic scale. This method demands a laser supply that may generate very concentrated and exact beams of sunshine. The 266nm wavelength is especially well suited for this on account of its limited wavelength, which makes sure that the laser beam can be targeted to an exceedingly small location measurement.
Smaller acceptance angle: BBO crystals have a little acceptance angle that limitations the enter light-weight beam’s gentle beam divergence and leading mode high-quality for productive regularity conversion.
The 4 lower figures illustrate which the team velocity delay (temporal stroll-off) raises since the pulses propagate via the material. The temporal wander-off is illustrated for distances Z0 by way of Z3, which happen to here be indicated about the diagram at best.
They even have a large hurt threshold, making it possible for them to manage substantial-energy laser beams without having degradation. These special Homes make BBO crystals a flexible Device in numerous optical apps.
In the situation of ultrashort pulses the superior team velocity mismatch enforces the use of a shorter crystal, which calls for significant optical intensities for any supplied conversion performance.
The length with the SHG crystal considerably influences the spectral width of your reference pulse, or alternatively the bandwidth of the SHG filter.