Examine This Report on BBO Crystal
Examine This Report on BBO Crystal
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Hello there, thank you for getting in contact 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 can be made by reaching out to us at [email protected]
A1: Yes, BBO crystals have a superior damage threshold, building them suited to higher-ability laser units. Their ability to face up to large laser intensities without struggling from optical destruction tends to make them a great choice for frequency conversion in superior-electrical power lasers.
Figure 23: This diagram illustrates a beam's focal area in a uniaxial birefringent material. Straight strains, symbolizing rays, are drawn with the Centre of the beam midsection. Because the beam diverges within the beam waistline, the Vitality from the beam is dispersed around a larger cross sectional space.
Broad openness assortment: BBO crystals have a large openness array from 189 nm to 3500 nm, masking ultraviolet, visible, and in the vicinity of-infrared locations. This allows BBO crystals for use for varied laser sources with numerous wavelengths.
Such resilience makes sure that its nonlinear Homes will not be quickly compromised, making it a favorite in environments exactly where regularity and reliability are paramount.
When an optic is damaged by a ongoing wave (CW) laser, it is often because of the melting of your area due to absorbing the laser's Electrical power or harm to the optical coating (antireflection) [1]. Pulsed lasers with pulse lengths lengthier than 1 µs could be taken care of as CW lasers for LIDT conversations.
Procedure of nonlinear crystals at temperatures underneath space temperature (to attain stage matching) is generally problematic, as it may well bring on condensation of water about the crystal surfaces If your surrounding air is not really incredibly dry.
This precision enables the fabrication of intricate buildings and patterns on several materials, from metals to Organic tissues. It’s not nearly making more compact objects; it’s about developing them having an unparalleled level of element.
It is usually required to target the incident mild during the crystal for SHG purposes, since efficient technology of next harmonic light-weight requires significant peak intensities, including 109 W/cm2. When making use of femtosecond pulses with moderate energies during the nanojoule array, obtaining the expected peak intensities can demand little focal places.
These crystals are unique as a result of their power to alter the frequency of light passing as a result of them, click here a residence that is extremely popular in several fields for instance laser technological know-how and quantum physics. The flexibility of BBO crystals would make them a vital part in lots of advanced optical units.
BBO nonlinear crystal is often a damaging uniaxial crystal. It offers stage matching for numerous second-buy interactions almost in excess of its entire transparency range. This transparency ranges from 185 nm to three.3 µm, as inferred from transmittance measurements applying crystal samples of a few mm thickness.
The magnitude in the successful nonlinear coefficient relies on the nonlinear tensor factors and about the utilized section-matching configuration. A high nonlinearity is significant especially If your achievable optical intensities are reduced.
Since the refractive index isn't going to vary linearly with frequency in dispersive crystals like β-BBO, it truly is impossible to optimally stage match just about every frequency inside the enter pulse's spectral range With all the corresponding second harmonic frequency from the produced pulse.