BBO Crystal - An Overview
BBO Crystal - An Overview
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Howdy, thank you for getting in touch with Thorlabs. The wavelength ranges with 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 created by reaching out to us at [email protected]
Thorlabs provides a wide selection of optics optimized for use with femtosecond and picosecond laser pulses. Remember to see below To learn more.
Crystal lifetime can also be strongly depending on the fabric high-quality, although certain degradation phenomena look like intrinsic limits of the fabric.
Ordinarily, the crystal product must have a superior optical transparency for all wavelengths associated �?as an example, for pump, signal and idler within an optical parametric amplifier.
Assuming a crystal of a supplied thickness, it can be done to define a reference pulse using a spectral array which is the maximum that could be sufficiently stage matched. This spectral bandwidth limitation will also be thought of in terms of an SHG spectral filter whose passband will depend on both of those the precise crystal and the pulse's Middle frequency. Frequencies outside of this filter’s passband will be rejected from going through the SHG system.
Now Assess the utmost electricity density to that and that is specified as the LIDT for your optic. When the optic was examined in a wavelength in addition to your running wavelength, the injury threshold need to be scaled appropriately.
This check here special blend ensures that β-BBO crystal is actually a promising candidate for nonlinear optical programs for example frequency converters and optical parametric oscillators. In quantum optics, β-BBO crystal can crank out entangled photon pairs and ten-photon entanglement.
Substantial-precision laser microfabrication is a technique where by components are processed and modified on a microscopic scale. This method requires a laser supply that may deliver really focused and precise beams of sunshine. The 266nm wavelength is especially well suited for this on account of its brief wavelength, which makes sure that the laser beam can be targeted to an exceedingly compact spot sizing.
Considering that the dynamics of this method are highly topic to experimental parameters, it truly is challenging to arbitrarily forecast the specific effects on the second harmonic pulse. These effects can incorporate back again conversion, where 2nd harmonic light is converted back to fundamental light, and spectral narrowing from the SHG pulse.
Significant nonlinear coefficients: BBO crystals have significant nonlinear coefficients that make productive frequency conversion processes with lower enter electric power needs doable.
The spectrally narrowed SHG pulse spectrum is alleged to be apodized, considering the fact that an influence of the fundamental pulse exceeding the most input bandwidth Restrict could be the removal of the best and cheapest frequencies with the SHG pulse spectrum.
The 266nm generation refers back to the production of ultraviolet light-weight with a wavelength of 266 nanometers.
Because the refractive index would not differ linearly with frequency in dispersive crystals like β-BBO, it can be not possible to optimally section match each and every frequency during the input pulse's spectral range Together with the corresponding next harmonic frequency within the produced pulse.