About a-BBO Crystal
About a-BBO Crystal
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However, it could be quite challenging to match the LIDT specification of an optic in your laser. You can find multiple regimes where a pulsed laser can damage an optic and this relies about the laser's pulse length. The highlighted columns during the table under define the appropriate pulse lengths for our specified LIDT values.
Hi there, thanks for getting in touch with Thorlabs. The wavelength ranges on the antireflective coatings on these β-BBO crystals align With all the respective wavelength bands that these crystals are optimized for. Requests for customizations may be produced by achieving out to us at techsupport@thorlabs.com
Having said that, it’s essential to note that though BBO crystals can cope with significant electrical power, they ought to even now be utilized inside their specified power array to stop possible damage and make sure optimum performance.
The section-matching capabilities of BBO crystals deserve Exclusive point out. Within the intricate dance of photons, the place conversion from one wavelength to another is often preferred, the section-matching supplied by BBO ensures that Electricity losses are minimal.
Please Be aware that we have a buffer built between the required destruction thresholds online and the tests which Now we have finished, which accommodates variation amongst batches. On ask for, we can offer person test data in addition to a tests certificate.
Bodily, when the fundamental spectrum is nicely throughout the reference pulse spectrum, the SHG pulse depth profile would be the sq. of the fundamental depth profile, efficiently truncating the period. This scenario is illustrated in Figure twenty.
These Qualities make BBO crystals very attractive in various purposes, from laser frequency conversion to electro-optic modulation. Their large transparency variety allows them to operate having a broad variety of laser wavelengths, though their significant destruction threshold guarantees they will manage significant-electricity laser beams with out degradation.
This house sets it apart get more info from linear optical materials that don’t change the frequency of sunshine passing through them. This kind of distinguishing element kinds the inspiration for your myriad of programs that BBO can provide.
Hello, I was wanting to know if It really is probable in your case to create a BBO crystal using a tailor made coating at 532nm fundamental and 266nm second harmonic era. Finest, Ben
The raw materials, usually a combination of barium carbonate and boric acid, are positioned in the platinum crucible and heated until they soften. The temperature is then slowly lessened, letting the BBO crystal to type around many months. The crystal is then extracted, Lower into the desired condition, and polished to achieve a superior-quality optical area.
This is actually the so-known as oo-e arrangement, as the two photons from the basic are polarization-oriented along the regular axis and the next harmonic photon's polarization is while in the amazing aircraft.
When an input pulse's spectral array is equal to or narrower compared to the reference pulse, the generated 2nd harmonic pulse provides a length that is definitely shorter by an element of 1/√two and a spectral width that is certainly broader by a factor of √two.
Pulsed lasers with higher pulse repetition frequencies (PRF) may possibly behave equally to CW beams. However, this is very dependent on factors like absorption and thermal diffusivity, so there's no trustworthy approach for determining when a large PRF laser will destruction an optic on account of thermal outcomes.