Rubidium titanyl phosphate, RTP, is an electro-optic crystal for switching and modulation. Low switching-voltage designs and elevated repetition rates benefit from its moisture resistance and limited piezoelectric ringing.
Properties, applications and specifications
RTP (Rubidium Titanyle Phosphate – RbTiOPO4) is a material now widely used for Electro Optical applications whenever low switching voltages are required.
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 shows 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 and NdYAG laser at 1.064um with fairly good efficiency.
Field of Application of RTP pockels cell:
Pulse-picker in femto-second laser
Qswitch at high repetition rate
Phase Modulator
Amplitude Modulator
Cavity Dumper
Specification of RTP Pockels
Dimension Tolerance: W/H +/-0.1mm, L+0.2/-0.1mm
Orientation Tolerance: +/-0.15 °
Perpendicularity: +/-10 arcmin
Parallelism: <10 arc sec
Flatness: Wavefront Distotion: Chamfer: < 0.2mmX45° Surface Quality: 20/10- MIL-PRF-13830B Clear Apperture: >90% Electrode: Ti,or Au Extiction rate: >20dB @1064nm Coating: AR Coating @1064nm R<0.2% or customer request LITD: >10J 1064nm,10ns, 10Hz 1064nmStandard Products of RTP cell
