High damage Threshold (>15J/cm² at 10Hz, 10ns at 1064nm performed on coated crystals of 10mm long)
No piezoelectric ringing
Low operating voltage (1300V for Y-cut and 1600V for X-cut at 1064nm applied to a crystal pair of 4x4mm² for the aperture and 2x10mm for the length)
Low bulk absorption (<250ppm/cm at 1064nm)
Used as pulse-picker in femto-second train
Used as Q-switch at high repetition rate
Rubidium Titanyle Phosphate – RbTiOPO4
RTP is an isomorph to Potassium Titanyl Phosphate (KTiOPO4, KTP), a highly efficient non-linear crystalline material. RTP single crystals are grown by a slow-cooling flux method. The saturation point at the start of crystal growth is set by using a seed-tentative method. The growth temperature ranges from 800°C to 950°C with a growth period between 45 and 60 days.
RTP crystal appealing because it is not sensitive to moisture, easy to handle and coat, and also it does not exhibit piezo-electric ringing at elevated repetition rate. Moreover, RTP exhibits high electro-optic coefficients that allow the monitoring of Pockels cell with low power voltage requirement.
As RTP is transparent from 0.4 to 3.5µm, it can be used in multiple types of laser such as Er:YAG laser at 2.94µm with fairly good efficiency. Bulk absorption measurements at 1.064µm range from 50 to 150ppm using Photothermal Common Path Interferometer.
RTP has a fairly high surface damage threshold measured by SPICATEC at 15J/cm² (1064nm, 10ns, 10Hz).
Standard Package Contains
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According to federal law in Australia, any hand-held, battery operated laser with a power emmission above 1mW is considered a dangerous weapon, and written consent must be obtained prior to possessing/importing such a laser pointer.
Unless otherwise stated, the Visual Fault Locators and other handheld laser devices sold by AusOptic are fully compliant with the 1mW output limits and do not require a permit to carry.
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