Optical crystals can exhibit distinct types of optical nonlinearities, that may be utilized in various techniques:
Even though the above technique gives a fantastic guideline for LIDT values, make sure you Speak to Tech Support If the wavelength differs from the required LIDT wavelength. In case your ability density is below the modified LIDT of your optic, then the optic must operate for your personal software.
5 mm to minimize team velocity mismatch and are ideal for frequency doubling or tripling of Ti:sapphire and Yb:doped laser pulses. The vital and noncritical section matching LBO crystals are perfect for 2nd or 3rd harmonic generation of Nd:YAG and Yb:doped lasers.
Now Review the maximum Strength density to that that is specified because the LIDT for that optic. In the event the optic was analyzed at a wavelength besides your working wavelength, the injury threshold must be scaled appropriately [three].
Hygroscopic crystal products deteriorate when they're not usually saved in adequately dry air (or a dry purge gas). This applies e.g. to KDP and BBO, As well as in a lesser extent to LBO. It can be handy to help keep this type of crystal at a considerably elevated temperature, that makes it simpler to continue to keep it dry.
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You should Take note that Now we have a buffer created between the required problems thresholds on the web and the checks which We have now carried out, which accommodates variation amongst batches. On request, we can offer person examination information and facts as well as a screening certificate.
As well as their use in laser frequency conversion, BBO crystals have found applications in electro-optic modulation and quantum optics experiments.
The substantial harm threshold of BBO crystals is especially essential in environments exactly where superior-depth lasers are definitely the norm. Regular resources may well falter, degrade, and even break less than these kinds of intensities.
Any scratches can degrade the optical efficiency from the crystal and potentially cause problems under substantial laser energy. For stubborn stains, an answer of mild detergent or isopropyl Alcoholic beverages could be Carefully applied to the crystal surface area after which you can rinsed off with distilled h2o.
When comparing an LIDT specified for just a pulsed laser towards your laser, it is essential to grasp the subsequent:
Nevertheless, in many instances, the primary difference in the elemental and next harmonic pulse velocities may cause just one pulse to considerably lag the other.
The angular content of a focused beam could be visualized by tracing rays from the lens on the focal spot. Each and every ray drawn from the lens to your tightly focused location (Figure 23) tends to make another angle (ψ) with the Main ray, as well as the number of angles raises Together with the NA. As being the number of angles will increase over and above the reference NA filter (or angular area apodization filter width), the section-matching on the more info rays outside of the filter width diminishes thus reducing the SHG conversion efficiency of People rays.
Optical parametric amplification (OPA): We use OPA to measure our parts�?nonlinear conversion overall performance and stage-matching angle for any offered input wavelength and signal/idler wavelengths. We assure that our products meet the specs for OPA purposes.