The best Side of BBO Crystal
The best Side of BBO Crystal
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Sometimes, the mismatch is usually modest. As an example, every time a β-BBO crystal is accustomed to frequency double 1550 nm mild and supply 775 nm gentle, the team velocity mismatch is only a few femtoseconds per millimeter.
When the above process offers a good general guideline for LIDT values, make sure you Get hold of Tech Assist if your wavelength is different from the specified LIDT wavelength. If the electric power density is fewer than the altered LIDT of the optic, then the optic should really perform to your software.
Thorlabs provides a large choice of optics optimized to be used with femtosecond and picosecond laser pulses. Remember to see underneath For more info.
BBO crystal stays essentially the most flexible nonlinear optical crystals thanks to its one of a kind blend of optical Homes (
BBO crystals can be cleaned utilizing a tender fabric or air blower. For stubborn stains, a delicate detergent or isopropyl alcohol can be employed. It’s important to steer clear of applying abrasive products which could scratch the crystal’s floor. When cleansing BBO crystals, it’s vital that you use a gentle, round movement to avoid scratching the area.
If the crystal surfaces remain “dirty�?after the above cleansing procedures, the surfaces may have been weakened. You should Make contact with us for rework on the crystals.
Nevertheless, it’s imperative that you Be aware that though BBO crystals can handle significant electrical power, they should however be utilized inside their specified electric power assortment to stop likely problems and be certain exceptional efficiency.
Nonlinear Crystals of possibly β-barium borate (BBO) or lithium triborate (LBO) are employed for frequency conversion of laser sources. BBO crystals function thicknesses from 0.2mm to 0.5mm to reduce team velocity mismatch and are perfect for frequency doubling or tripling of Ti:Sapphire and Yb:doped laser pulses. The essential and noncritical phase matching LBO crystals are ideal for second or 3rd harmonic technology of Nd:YAG and Yb:doped lasers.
The lifespan of BBO crystals could vary greatly depending on several things. These include how the crystals are employed, how They may be handled, and also the conditions where They are really stored.
BBO crystals might be ordered from a range of suppliers around the globe. When choosing a provider, it’s crucial to look at elements for instance the quality of the crystals, the provider’s read more track record, and the extent of customer service furnished.
Pumped by the fourth harmonic of a Nd:YAG laser (at 266nm), a tunable OPO with signal wavelength assortment among 422nm and 477nm has actually been noticed by angle-tuning a kind I BBO crystal. Pumped by a 1mJ, 80fs Dye laser at 615nm, the OPA with two BBO crystals yields greater than 50µJ (optimum 130µJ),
Many different properties of the nonlinear crystal is usually vital for an software e.g. in nonlinear frequency conversion:
BBO crystals must be taken care of with treatment in order to avoid scratching or damaging their surfaces. They should be saved within a dry, great spot and kept away from immediate daylight. Standard cleaning which has a delicate cloth or air blower is usually recommended to keep up their optical functionality. When handling BBO crystals, it’s essential to use gloves to prevent oils from your pores and skin from contaminating the crystal floor.
Last but not least, the Minimize crystals are polished to the smooth end. This polishing method not merely enhances the aesthetic look from the crystals but will also increases their optical Houses by reducing surface imperfections.