5 Simple Techniques For BBO Crystal

5 Simple Techniques For BBO Crystal

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Optical parametric oscillation (OPO): We utilize OPO to ascertain our products�?nonlinear conversion overall performance and stage-matching angle for a supplied enter wavelength and sign/idler wavelengths. We make certain that our objects meet the necessities for OPO applications.

When choosing an SHG crystal, the heartbeat period of the laser supply must be taken into consideration. A mismatch amongst the duration and crystal thickness will cause SHG pulses lengthier in time and narrower in spectral written content than possible below ideal situations.

A1: Of course, BBO crystals Have got a significant problems threshold, generating them well suited for substantial-power laser devices. Their skill to withstand higher laser intensities with out struggling from optical damage tends to make them a great choice for frequency conversion in significant-ability lasers.

BBO crystal continues to be quite possibly the most multipurpose nonlinear optical crystals thanks to its distinctive mixture of optical Qualities (

The second harmonic light is then polarized parallel to the aircraft. Angle tuning adjusts θ and is particularly executed by rotating the crystal across the Y-axis.

They exhibit great homogeneity above significant volumes and have a significant destruction threshold, but are hygroscopic and have a small nonlinearity.

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the chemical longevity; e.g., some crystal supplies are hygroscopic, Other people undertake chemical alterations when heated in the vacuum chamber for application of a dielectric coating

The group velocities of the basic and 2nd harmonic pulses may also be diverse, even when section-matched, along with the magnitude from the team velocity mismatch depends on the crystal Qualities along with the optical frequencies in the pulses.

Any scratches can degrade get more info the optical functionality in the crystal and possibly cause injury below significant laser energy. For stubborn stains, an answer of gentle detergent or isopropyl Alcoholic beverages is often Carefully applied to the crystal floor then rinsed off with distilled water.

As previously said, pulsed lasers ordinarily induce a distinct style of damage for the optic than CW lasers. Pulsed lasers typically never warmth the optic enough to damage it; alternatively, pulsed lasers develop strong electrical fields effective at inducing dielectric breakdown in the material.

BBO nonlinear crystal is a destructive uniaxial crystal. It provides section matching for several 2nd-order interactions Just about more than its full transparency assortment. This transparency ranges from 185 nm to 3.3 µm, as inferred from transmittance measurements employing crystal samples of a few mm thickness.

Any contamination can degrade the optical overall performance in the crystal and probably bring about destruction below large laser electrical power. When storing BBO crystals, they must be put within a protecting case to stop Bodily hurt and dust accumulation.

Any imperfections within the reducing procedure could potentially have an affect on the optical Houses on the crystals.