| Introduction
 Rubidium Titanyl Phosphate (RTP) is a
new NLO crystal for the SHG,OPO and Electro-optic application.
RTP single crystals are recently grown by TopSeeded Solution
Growth (TSSG) from self-flux and treated electro-thermally.
Advantage:
 an excellent crystal
for Electro Optical applications at high repetition rate
Large nonlinear optical and electro-optical coefficients
No Piezoelectric Ringing
Low Insertion Loss
Thermal Compensating
Design
high damage threshold;
.High Extinction and
Contrast Ratio
Non-hygroscopic
Application:
SHG Nd: lasers
at 1064nm
Electro-Optical Q-switch
and modulation for Optical waveguides
Optical Parametric
Amplifiers (OPA) and Oscillators (OPO) application;
Structural and Physical Properties
| Crystal Structure |
Orthorhombic, |
| Lattice Parameters |
a = 12.96Å,b = 10.56 Å,c = 6.49Å
|
| Density |
3.6 g/cm 3 |
| Melting Point |
~ 1000 °C |
| Ferroeletric transition temp. |
~810°C |
| Mohs Hardness |
~5 |
| Thermal Expansion Coe.,/°C |
a1=1.01x10^ -5 , a2=1.37x10^
-5 , a3=-4.17x10^ -6 |
| Hygroscopic Susceptibility |
No |
| Dielectric Constant |
Eeff= 13.0, |
| Color |
Colorless |
| Ionic conductivity
(room temperature, 10kHz) |
10^ -11 ~ 10^ -12 S/cm |
Optical Properties:
| Transmitting range: |
350~4500
nm |
| Static
Half Wave Voltage @1064nm:
|
1,445 V
for a pair of 4x4x10mm |
|
1,600 V
for a pair of 4x4x20mm
|
| 1,700 V
for a pair of 6x6x7mm
|
| 2,400
V for a pair of 6x6x20 mm |
| Sellmeier equations:
Ni^2=Ai+Biλ^2/(λ^2-Ci^2)-Diλ^2 |
INDEX |
A |
B |
C |
D |
| nx
|
2.15559 |
0.93307 |
0.20994 |
0.01452 |
| ny
|
2.38494 |
0.73603 |
0.23891 |
0.01583 |
| nz
|
2.27723 |
1.11030 |
0.23454 |
0.01995 |
|
Nonlinear Coefficients: (pm/v)
|
d15 = 2.0 pm/V; d24
= 3.6 pm/V; d31= 2.0 pm/V
d32 = 3.6 pm/V; d33 = 8.3 pm/V |
| deff fortype II SHG@1064nm=
2.39 pm/V |
| damage threshold(10
ns pulse): |
600 MW/cm2
@ 1064 nm,
|
| Absorption coefficient: |
< 0.05 % / cm @ 1064 nm < 4 %
/cm @ 532 nm |
| Contrast Ratio: |
20 dB @ 633 nm |
| Electro-optical
constants
|
r13 =10.6, r23 =12.5; r33 =35(x-cut);
r33 =38.5(y-cut)
|
Specification
| Dimension
tolerance: |
±0.1mm |
| Flatness: |
<l/8 @633nm |
| Surface
quality: Scratch/Dig |
10/5 |
| Parallelism:
|
better than 30 arc sec. |
| Perpendicularity: |
better than 30 arc min |
| Angle
tolerance: |
△q
< 0.5°,△f
< 0.5°
|
| AR
coating: |
AR
coatings
|
| Clear
aperture: |
>90% central area |
| Transmitting
wave front distortion: |
less than l/8 @ 633nm |
|
