For example, take into consideration a essential pulse propagating above a given crystal thickness. Once the temporal walk-off is larger compared to the length of the elemental pulse, this pulse will also have a spectral bandwidth that considerably exceeds the spectral width on the reference pulse. A common rule for restricting the detrimental outcomes linked to both equally Bodily results is to settle on a crystal thickness that limits the basic and 2nd harmonic temporal walk-off to not more than the length of the elemental pulse.

Even though the above process supplies a fantastic general guideline for LIDT values, make sure you Make contact with Tech Aid In the event your wavelength differs from the required LIDT wavelength. If the electric power density is under the altered LIDT of the optic, then the optic need to get the job done for the application. 

The Electricity in the two waves propagates in Instructions determined by their Poynting vectors. Snell's regulation would not explain the direction of Electrical power flow, nevertheless it can be employed to calculate the direction on the k-vector within the crystal.

So that you can use the desired CW hurt threshold of the optic, it's important to understand the subsequent:

Wide openness wide range: BBO crystals have a large openness array from 189 nm to 3500 nm, masking ultraviolet, seen, and in the vicinity of-infrared areas. This enables BBO crystals for use for varied laser resources with several wavelengths.

The calculation higher than assumes a uniform beam depth profile. You have to now take into consideration hotspots from the beam or other non-uniform depth profiles and approximately work out a most electricity density.

Determine 18: The regular and incredible refractive indices of β-BBO change with frequency and wavelength because of a material property identified as dispersion. Dispersion exists in all media other than vacuum.

When pulse lengths are between one ns and 1 µs, laser-induced damage can occur possibly on account of absorption or a dielectric breakdown (hence, a user need to Examine each CW and pulsed LIDT). Absorption is both because of an intrinsic assets with the optic or as a result of surface area irregularities; Hence LIDT values are only legitimate for optics Assembly or exceeding the surface high-quality technical specs provided by a maker.

In summation, when several crystals supply precise benefits during the realm of photonics, BBO crystals arise as comprehensive powerhouses. They encapsulate a range of more info capabilities that are not just beneficial in isolation but do the job synergistically, creating a holistic solution for frequency doubling and harmonics technology.

One example is, anti-reflective coatings may be applied to lessen light reduction on account of reflection, whilst protecting coatings can be utilized to improve the crystal’s resistance to environmental elements. Customization allows for optimum efficiency in specific purposes.

This residence is particularly beneficial in apps that entail substantial-ability lasers or intensive mild sources, mainly because it ensures the longevity and dependability from the crystal in such demanding conditions.

Pulsed lasers with substantial pulse repetition frequencies (PRF) may behave similarly to CW beams. Regrettably, this is extremely depending on aspects for example absorption and thermal diffusivity, so there isn't any trusted process for identifying every time a significant PRF laser will harm an optic as a consequence of thermal results.

You can purchase our BBO crystal things by speaking to us by e-mail or cellular phone. You can also see our Web page to search our brochure and need a quotation on line. We offer competitive selling prices and rapid shipping worldwide. I benefit your rate of fascination inside our BBO crystal products and solutions!

Any imperfections while in the reducing process could likely have an affect on the optical Qualities with the crystals.