RTP

 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:               <Lambda/10 @632.8nm
Wavefront Distotion:     <Lambda/8 @632.8nm
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 1064nm
 

Standard Products of RTP cell

Part No
Cut Angle
Size(mm)
Wavelength(nm)
Y cut
2X2X5
1064nm
RTP-Y-335
Y cut
3X3X5
1064nm
RTP-Y-3310
Y cut
3X3X10
1064nm
RTP-Y-445
Y cut
4X4X5
1064nm
RTP-Y-448
Y cut
4X4X8
1064nm
RTP-Y-4410
Y cut
4X4X10
1064nm
RTP-X-445
X cut
4X4X5
1064nm
RTP-X-448
X cut
4X4X8
1064nm
RTP-X-4410
X cut
4X4X10
1064nm
RTP-X-5510
X cut
5X5X10
1064nm
RTP-X-6610
X cut
6X6X10
1064nm
RTP-X-7710
X cut
7X7X10
1064nm
RTP-X-8810
X cut
8X8X10
1064nm
RTP-X-445
X cut
4X4X5
1053nm
RTP-X-448
X cut
4X4X8
1053nm
RTP-X-4410
X cut
4X4X10
1053nm