RTP - Rubidium Titanyle Phosphate
RTP
(Rubidium Titanyle Phosphate – RbTiOPO4) is an isomorph of KTP crystal
which is used in nonlinear and Electro Optical applications. It has advantages
of higher damage threshold(about 1.8 times of KTP), high resistivity,
high repetition rate, no hygroscopic and no induce piezo-electric effect
with electrical signals up to 60 kHz. Its transmission range is 350nm
to 4500nm.
Physical and Optical Properties:
Crystal structure: Orthorhombic
Cell Parameters: a = 12.96 Å; b =10.56 Å; c =6.49 Å
Mohs hardness: About 5
Density: 3.6 g/cm3
Melting Point: About 1000°C
Thermal Expansion Coefficients (/K) ax=1.01x10-5, ay =1.37x10-5, az =-4..17x10-6
Sellmeier equations(λ in µm)
nx^2=2.15559 + 0.93307[1-(0.20994/l)^2] - 0.01452l^2
ny^2=2.38494 + 0.73603[1-(0.23891/l)^2] - 0.01583l^2
nz^2=2.27723 + 1.11030[1-(0.23454/l)^2] - 0.01995l^2
Thermo-optical coefficients (dL/dT): -0.029 nm / °C
Electro-optic constants(Y-cut): r33=38.5 pm/V
(X-cut): r33=35 pm/V,r23=12.5 pm/V, r13=10.6 pm/V
Electrical Resistivity: About 1011-1012ohm·cm
Static Half Wave Voltage at 1064 nm
4x4x20 mm: 1,600 V
6x6x20 mm: 2,400 V
9x9x20 mm: 3,600 V
Extinction Ratio: >20dB @633nm
General Specifications:
Growing Orientation: Along Y-axis
Maximum length(5x5mm): 25mm
Length tolerance, mm: +0.5 / -0.1
Width and heighth tolerance, mm: +/-0.1
Parallelism: < 30"
Perpendicularity: < 15'
Surface quality: 20/10
coating: AR-coated
