Optical parametric oscillation (OPO): We utilize OPO to find out our goods�?nonlinear conversion overall performance and phase-matching angle to get a specified input wavelength and signal/idler wavelengths. We make certain that our products fulfill the necessities for OPO purposes.
This great-tuning functionality signifies that BBO crystals can cater to each generic and remarkably specialized wants with equal finesse.
Thorlabs offers a large choice of optics optimized for use with femtosecond and picosecond laser pulses. Please see beneath To find out more.
BBO crystals could be procured from many suppliers specializing in optical supplies. It’s important to go with a highly regarded supplier to be sure the standard of the crystals.
, the angle between the light's propagation direction as well as crystal's optic axis is often tuned so the refractive index of a selected frequency (ω) in the basic enter pulse precisely equals the refractive index of two times the input frequency (twoω). It truly is common to optimize period matching conditions for the frequency at approximately the middle of the heartbeat's bandwidth.
The calculation earlier mentioned assumes a uniform beam depth profile. You should now take into consideration hotspots during the beam or other non-uniform depth profiles and around estimate a maximum energy density.
When laser mild is concentrated to the spot, the diameter of the beam waistline will be the focal place size, and the rate at which the light diverges in the beam waistline is associated with the Rayleigh vary (zR).
In combination with their use in laser frequency conversion, BBO crystals have discovered purposes in electro-optic modulation and quantum optics experiments.
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Other section matching circumstances are feasible. Essential Form-II phase matching employs an oe-o or eo-e for positive and adverse uniaxial crystals. Non-significant section matching makes use of crystal temperature to realize section matching instead of read more angular tuning.
Too much optical intensities all through Procedure may perhaps instantly harm a crystal. Regrettably, nonlinear crystals normally need to be operated not considerably from their optical hurt threshold to achieve a adequately significant conversion performance. This means a trade-off involving conversion effectiveness and crystal lifetime.
Pulsed lasers with superior pulse repetition frequencies (PRF) may behave similarly to CW beams. Regrettably, this is extremely dependent on things for example absorption and thermal diffusivity, so there's no reliable technique for deciding whenever a large PRF laser will hurt an optic as a result of thermal effects.
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Major angular stroll-off BBO crystals Possess a significant angular stroll-off that triggers spatial splitting in between many polarization areas of light when circulating that has a BBO crystal.