Products

RTP Crystals
Broad transparent range from 0.35μm to 4.5μm
  • High damage threshold (1.8 times the magnitude of KTP)
  • High resistivity and high repetition rate
  • Surpassing homogeneity and high laser damage threshold 
  • No acoustic ringing and stability over a wide temperature range(-60℃-+80℃) Inquire Us  
  • Specifications:

    Growth Orientation Along Y-axis Maximum Length(at 5x5mm) 25mm
    Length Tolerance +0.5mm / -0.1mm Width and Height Tolerance +/-0.1mm
    Parallelism < 30″ Perpendicularity < 15′
    Surface Quality 20/10 S/D Coating AR-coated

     

    Basic 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) αx=1.01x10-5 ,
    αy =1.37x10-5 ,
    αz =-4..17x10-6
    Sellmeier Equations
    (λ in μm)
    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 (dλ/dT) -0.029nm / °C
    Electro-optic Constants (Y-cut)
    (X-cut)
    r33=38.5 pm/V
    r33=35 pm/V,r23=12.5pm/V, r13=10.6 pm/V
    Electrical Resistivity About 1011-1012ohm·cm
    Static Half Wave
    Voltage at 1064nm
    4x4x20mm:1.600V
    6x6x20mm:2.400V
    9x9x20mm: 3.600 V
    Extinction Ratio >20dB@633nm

    RTP (Rubidium Titanyle Phosphate – RbTiOPO4) Crystals are an isomorph of KTP crystals and find great utility in nonlinear and electro-optical applications. It has the advantages of a higher damage threshold(about 1.8 times the magnitude of that of KTP), high resistivity, low absorption loss, non-hygroscopicity, and the absence of induced piezo-electric ringing with the frequencies of electrical input signals up to 60 kHz. Its transmission range is 350nm to 4500nm. The walk-off angle of the crystal, when generating yellow lasers, is miniature, in addition, the crystal is a highly efficient media for lasers of high repetition rates.

    Shanghai North Optics offers custom RTP crystals upon customers' request. AR coatings can be furnished. Besides, our RTP Q-Switches have been released for sale, click on the bold text to learn more.


    Applications of RTP Crystals:

    1. SHG of Nd-doped lasers at 1064nm
    2. Electro-Optical Q-switch, EO modulation, and optical waveguides
    3. Optical Parametric Amplification (OPA) and Optical Parametric Oscillation (OPO)