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The duration of your SHG crystal significantly influences the spectral width from the reference pulse, or alternatively the bandwidth on the SHG filter.
Hello there, thank you for contacting Thorlabs. The wavelength ranges on the antireflective coatings on these β-BBO crystals align While using the respective wavelength bands that these crystals are optimized for. Requests for customizations can be created by achieving out to us at [email protected]
As previously mentioned, pulsed lasers ordinarily induce a distinct type of harm into the optic than CW lasers. Pulsed lasers frequently don't warmth the optic more than enough to break it; instead, pulsed lasers deliver powerful electric powered fields effective at inducing dielectric breakdown in the material.
No matter whether it’s in the event of extra productive lasers, the exploration of quantum phenomena, or even the development of recent optical equipment, BBO crystals will unquestionably proceed to play a pivotal purpose.
Thorlabs expresses LIDT for CW lasers like a linear electricity density calculated in W/cm. With this routine, the LIDT supplied being a linear power density is often applied to any beam diameter; a single would not should compute an altered LIDT to adjust for changes in spot dimensions, as shown via the graph to the best. Ordinary linear electrical power density may be calculated utilizing the equation below.
When the above method delivers a great rule of thumb check here for LIDT values, remember to Make contact with Tech Guidance In case your wavelength is different from the desired LIDT wavelength. In the event your electricity density is below the modified LIDT on the optic, then the optic should get the job done for the software.
Nonetheless, while BBO crystals can run at area temperature, Severe temperatures should really nevertheless be averted as they might influence the crystal’s stage-matching ailments and possibly trigger destruction.
This residence sets it other than linear optical resources that don’t change the frequency of light passing as a result of them. This kind of distinguishing element types the foundation for the myriad of purposes that BBO can serve.
It’s like getting only one note and splitting it into two harmonious tones. This method may be crucial in many Highly developed optical experiments and technologies.
BBO nonlinear crystal is actually a damaging uniaxial crystal. It provides phase matching for many 2nd-get interactions Just about above its complete transparency selection. This transparency ranges from 185 nm to 3.3 µm, as inferred from transmittance measurements using crystal samples of some mm thickness.
This characteristic translates to lessened need to have for intensive thermal administration techniques, again accentuating Price tag personal savings and technique simplicity.
When an enter pulse's spectral selection is equal to or narrower as opposed to reference pulse, the produced next harmonic pulse contains a duration that may be shorter by an element of 1/√two and a spectral width that may be broader by an element of √2.
The spectrally narrowed SHG pulse spectrum is alleged being apodized, because an result of the elemental pulse exceeding the maximum enter bandwidth limit is definitely the removal of the highest and most affordable frequencies within the SHG pulse spectrum.