Examine This Report on BBO Crystal

Sometimes, the mismatch may be little. One example is, any time a β-BBO crystal is utilized to frequency double 1550 nm mild and provide 775 nm gentle, the team velocity mismatch is only some femtoseconds for every millimeter.

Following, the facility/Vitality is possibly greater or lowered as well as optic is exposed at 10 new places. This process is recurring until finally damage is noticed. The harm threshold is then assigned to be the highest energy/Strength which the optic can withstand devoid of causing destruction. A histogram which include that underneath represents the testing of 1 BB1-E02 mirror.

The temporal walk-off with the slower pulse with regard to your faster is often a substantial fraction of the pulse duration. This really is illustrated in Determine 22.

As the second harmonic mild propagates, its energy flows in a special direction than that of the fundamental light.

BBO includes a minimal susceptibility to moisture. The AR coating or even the protecting coating (P-coating) on the crystal faces can defend the faces from moisture to some extent. It is fine to go away the crystal from the  set up for most optics labs with RH =< 40%.  On the other hand, we suggest to store the crystal within a desiccator if it won't be applied for over > 2 months to extend the crystal life span.

If the crystal surfaces are still “dirty�?just after the above cleaning treatments, the surfaces may have been harmed. Remember to Make contact with us for rework in the crystals.

Please note that We now have a buffer designed between the desired harm thresholds on the web and the tests which we have accomplished, which accommodates variation amongst batches. On ask for, we can provide person check data and also a testing certification.

A lot of our standard crystals come mounted into open up ring holders. Be sure to Observe the letter "H" from the product code which implies that crystal is provided BBO Crystal mounted.

In quasi-section matching, the crystal product is “poled�?to acquire up and down domains to counteract the stage-mismatch of the material, where by the poling time period is specific to your wavelengths of conversation.

The Power density of your respective beam needs to be calculated with regard to J/cm2. The graph to the right exhibits why expressing the LIDT as an Vitality density supplies the best metric for brief pulse resources. In this particular regime, the LIDT specified as an Electrical power density could be placed on any beam diameter; a single doesn't need to compute an adjusted LIDT to adjust for modifications in place size.

Pumped via the fourth harmonic of a Nd:YAG laser (at 266nm), a tunable OPO with signal wavelength array in between 422nm and 477nm has long been noticed by angle-tuning a type I BBO crystal. Pumped by a 1mJ, 80fs Dye laser at 615nm, the OPA with two BBO crystals yields a lot more than 50µJ (maximum one hundred thirtyµJ),

The production of Beta-Barium Borate (BBO) crystals is a posh and meticulous course of action that needs a higher degree of precision and know-how. This process, often known as the flux system, begins Along with the preparing of a combination of barium borate and barium fluoride.

With appropriate care and managing, BBO crystals can very last for quite some time. Nonetheless, their lifespan might be shortened by aspects including superior temperature, humidity, and Bodily destruction. BBO crystals are robust and sturdy, but Like every optical element, they might degrade after some time Otherwise thoroughly cared for.

This helps make them really long lasting and resilient, additional boosting their suitability for tough optical purposes.