BBO Crystal - An Overview
BBO Crystal - An Overview
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We polish our pieces employing a great-grained ruby powder or slurry with a cast iron or copper plate. We implement continual stress and motion to attain a sleek area location with lowered roughness and high flatness.
With appropriate care and maintenance, BBO crystals can previous for quite some time. Typical cleaning and right storage may also help extend the lifespan of the crystals. Furthermore, using the crystals in their specified running parameters can also support protect against untimely degradation.
Thorlabs offers a wide selection of optics optimized to be used with femtosecond and picosecond laser pulses. Make sure you see below To find out more.
BBO crystals could be ordered from different suppliers specializing in optical products. It’s vital that you pick a respected supplier to be certain the quality of the crystals.
Generally, the crystal materials ought to have a large optical transparency for all wavelengths involved �?one example is, for pump, sign and idler within an optical parametric amplifier.
Normal cleansing and appropriate storage may help prolong the lifespan of BBO crystals. It’s also vital that you avoid exposing the crystals to circumstances exterior their specified operating selection, as this could potentially cause long term harm.
Temperature level sensitivity: BBO crystals temperature sensitivity impacts their refractive indices and also period-matching troubles. This needs temperature stage stabilizing or tuning resources to help keep optimum efficiency.
Nearly all of our regular crystals appear mounted into open up ring holders. Remember to note the letter "H" inside the item code which indicates that crystal is supplied mounted.
The large injury threshold of BBO crystals is particularly important in environments where high-intensity lasers are the norm. Standard supplies may well falter, degrade, or simply crack underneath these types of intensities.
It is typically needed to concentration the incident light during the crystal for SHG applications, due to the fact effective technology of 2nd harmonic light demands large peak intensities, including 109 W/cm2. When employing femtosecond pulses with moderate energies during the nanojoule assortment, obtaining the necessary peak intensities can demand tiny focal places.
When evaluating an LIDT specified to get a pulsed laser on your laser, it is essential to grasp the following:
Pulsed lasers with large pulse repetition frequencies (PRF) might behave check here in the same way to CW beams. Sad to say, this is very depending on variables such as absorption and thermal diffusivity, so there isn't a reputable technique for determining any time a substantial PRF laser will destruction an optic resulting from thermal results.
BBO crystals needs to be dealt with with treatment to prevent scratching or harming their surfaces. They must be stored in the dry, great position and stored away from immediate daylight. Typical cleaning that has a gentle fabric or air blower is suggested to keep up their optical efficiency. When managing BBO crystals, it’s crucial that you use gloves to avoid oils from your skin from contaminating the crystal area.
This helps make them remarkably strong and resilient, further boosting their suitability for demanding optical purposes.