Typical cleansing and right storage can assist increase the lifespan of BBO crystals. It’s also crucial to keep away from exposing the crystals to circumstances exterior their specified functioning selection, as this can cause long-lasting damage.
Having said that, in several circumstances, the primary difference in the basic and 2nd harmonic pulse velocities may cause just one pulse to appreciably lag the opposite.
Howdy, thanks for getting in touch with Thorlabs. The wavelength ranges with the antireflective coatings on these β-BBO crystals align with the respective wavelength bands that these crystals are optimized for. Requests for customizations might be produced by achieving out to us at [email protected]
A: A significant damage threshold guarantees the crystal can manage a lot more power devoid of degrading, resulting in more time lifespan and regular functionality.
From a ray-product point of view, the propagation path defines the orientation of your central (chief) ray in Determine 23. The SHG approach is impacted via the choice of angles in excess of which incident light-weight propagates, for the reason that light-weight that isn't parallel on the chief ray has lowered stage-matching relative towards the Main ray.
Now Assess the most electrical power density to that which happens to be specified because the LIDT for that optic. If the optic was tested at a wavelength aside from your working wavelength, the harm threshold has to be scaled properly.
Bodily, when the fundamental spectrum is nicely inside the reference pulse spectrum, the SHG pulse intensity profile is definitely the sq. of the fundamental depth profile, efficiently truncating the duration. This scenario is illustrated in Figure 20.
The problems Investigation might here be performed on an identical optic (customer's optic will not be destroyed). Tests may well result in additional fees or lead times. Get in touch with Tech Assist For more info.
Taken jointly, these varied purposes underscore the immense price BBO crystals provide to several sectors. As a result of its unparalleled 266nm era, the BBO crystal is not only a Device but a catalyst, propelling developments across different fields.
As a result, the 2nd harmonic pulse spectrum, proven on the best, provides a spectral width around similar to The perfect case. Ideally, every frequency in the fundamental pulse spectrum can be concurrently section matched.
The basic resource could be the dye laser radiation pumped by the 2nd harmonic of the Q-switched Nd: YAG laser. A walk-off compensated configuration Using the BBO crystal pair has enabled us to comprehend this type of substantial conversion efficiency inside the interaction.
Beta Barium Borate (BBO) crystals have taken the world of photonics by storm. Probably the most spectacular components of these crystals is their revolutionary position in 266nm era.
The length with the crystal is a crucial parameter to take into account when optimizing the SHG system for that parameters of specific input pulses. Absent section-matching and temporal wander-off results, the SHG output will increase exponentially with crystal duration. The goal when selecting an SHG crystal will be to balance the crystal length with the constraints based on the elemental pulse. Decreasing the crystal thickness minimizes results associated with both equally section-matching bandwidth constraints and temporal stroll-off, which might be instantly similar.
This information dives deep into the benefits and one of a kind Qualities of BBO crystal and its paramount value in successful frequency doubling and harmonics generation at 266nm.