NLO Crystals
  LBO
  BIBO
  KTP
  GTR-KTP
  RTP
  KTA
  BBO
Laser Crystals
Electro-optics crystals
Optical Components
 

RTP

RTP (Rubidium Titanyle Phosphate – RbTiOPO4) is an isomorph of KTP crystal. It is an excellent crystal used in nonlinear and electro-optical applications. Its transmission range is 350nm to 4500nm.

Advantages

1. An excellent crystal for electro-optical applications at high repetition rate;
2. High damage threshold (about 1.8 times of KTP);
3. Low insertion loss;
4. No induce piezoelectric ring effect (up to 60 kHz);
5. Non-hygroscopic;
6. High extinction and contrast ratio;
7. Thermal compensating design.

Basic Propertie

Crystal structure

Orthorhombic

Cell Parameters

a=12.96Å; b =10.56Å; c =6.49Å

Mohs hardness

About 5

Density (g/cm3)

3.6

Melting Point

About 1000°C

Thermal Expansion
Coefficients (/K)

αx=1.01x10-5, αy =1.37x10-5,
αz=-4..17x10-6

Sellmeier equations(λ in um)

nx2=2.15559+0.93307[1-(0.20994/λ)2]-0.01452λ2
ny2=2.38494+0.73603[1-(0.23891/λ)2]-0.01583λ2
nz2=2.27723+1.11030[1-(0.23454/λ)2]-0.01995λ2

Thermo-optical Coefficients

-0.029 nm / °C

Electro-optic constants(Y-cut)
                       (X-cut)

r33=38.5 pm/V
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,1600 V
6x6x20 mm, 2400 V
9x9x20 mm, 3600 V

Extinction Ratio

>20dB@633nm


Specification of Sino-crystal's RTP crystal

Dimension tolerance

W(±0.1)×H((±0.1)×L(+0.5/-0.1) mm

Flatness

λ/8 @633nm

Surface quality: Scratch/Dig

10/5(uncoated)

Parallelism

better than 20 arc seconds

Perpendicularity

better than 0.25°

Angle tolerance

Δθ< ±0.3°, Δφ<±0.3°

AR coating

R<0.2%@1064nm,R<0.5%@532nm

Clear aperture

>90% central area

Wave-front distortion

less than λ /8 @ 633nm

Quality Warranty Period

one year under proper use


Applications
  • E-O application
  • NLO application
  • OPA and OPO application