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Cristal Laser RTP Q-switch (Rubidium Titanyl Phosphate - RbTiOPO4)

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RTP RbTiOPO4 used as Pockels cells for electro-optic modulators and Q-switches.


Cristal Laser


Crystal Laser Non-linear Crystals

Availability: Ships in 15 to 20 Business Days

Pickup: Check with team.

Availability: Ships in 15 to 20 Business Days



  • Electro-Optic
    • Wide optical bandwidth (0.5-3µm)
    • Low switching voltage
    • High laser induced damage threshold
    • No piezo electric ringing
    • Precise switching in high rep rate laser with super-fast voltage drivers
    • Thermally compensated design to operate on large temperature range
    • Applications:
      • Q-switching (On and Off)
      • Pulse picking


Rubidium Titanyle Phosphate – RbTiOPO4

These are biaxial crystals and natural birefringence needs to be compensated by use of two crystal rods specially oriented so that beam passes along the X-direction or Y-direction.

Input beam is polarised along the diagonal of the input face and Z and Y axis for X-cut crystals (respectively Z and X faces for Y-cut crystals) are perpendicular to the two side faces. Y and Z faces for X-cut crystals (respectively X and Z for Y-cut crystals) are rotated by 90° in the second crystal for thermal compensation.

The ‘o’ ray in the first crystal becomes the ‘e’ ray in the second crystal and vice versa, so that the thermal birefringence is compensated. Matched pairs (equal lengths polished together) are required for effective compensation.

RTP Q-switch

Freedom from piezoelectric ringing enables the use of RTP devices in high repetition rate mode locked laser pulse extraction, laser pulse slicing, chopping and gating systems as well as in Q­switching applications.

Because RTP crystals are not hygroscopic, in an appropriately clean, dust­free, enclosure, all devices within the series can be used without protective windows.


Applications Laser Systems
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