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2009-01-27

BBO Crystals for femtosecond lasers

EKSMA OPTICS offers BBO crystals of thickness down to 10 microns for frequency conversion of femtosecond lasers. Crystals of thickness less than 100 µm are supplied optically contacted on UV grade Fused Silica substrates with sizes 10×10×2 mm or 12×12×2 mm. Other sizes of substrates are also available on request. The tolerance of BBO crystal thickness on substrate is +10/-5 µm. Crystals can be protective coated with single layer non dispersive in VIS range AR coating, which could be optimized for particular crystal application.

Company calculates and suggests optimal crystals thickness and cut angles for different applications including:
  • Collinear and non-collinear Optical parametric generation and amplification (OPG, OPA, NOPA);
  • Difference and sum frequency generation (DFG, SFM);
  • Laser pulse duration measurements by auto and cross correlation techniques;

Free Standing BBO crystals:

Crystals down to 100 µm thick can be prepared as free standing crystals (not attached to the support). The tolerance is ±50 µm for crystals of thickness down to 300 µm and ±20 µm for crystals of thickness down to 100 µm.

Ring mounts are highly recommended for safe and convenient handling of ultrathin crystals. Mounts are made from anodized aluminum. The standard sizes are Ø 25,4 and Ø 30 mm. Mount thickness is 10 mm. Mounts of custom shapes and sizes are available also on custom request.

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