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Periodic Poled Lithium Niobate (PPLN) Crystal

Classification:

Laser crystal

Periodic Poled Lithium Niobate (PPLN) is a nonlinear crystal for high-efficiency wavelength conversion, which has a wide range of light transmission and covers the near and mid-infrared spectral regions. It can realize high-efficiency frequency conversion from visible to mid-infrared band, such as frequency doubling (SHG), sum frequency (SFG), optical parametric oscillation (OPO) and so on. The output of any wavelength in the light transmission range can be realized by the design of the periodic structure, so as to meet the demand of modern optics for the diversification of laser wavelength. PPLN crystals have been widely used in laser display, environmental detection, mid-infrared spectroscopy, all-optical wavelength conversion, optical sensing and other fields. The optical damage threshold and photorefractive threshold of the crystal can be greatly improved by magnesium oxide doping, while maintaining a high nonlinear coefficient. Compared with PPLN with the same composition, MgO:PPLN crystal can work more stably in the lower temperature and visible light range.

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  • Product Information(PDF)

    Periodic Poled Lithium Niobate (PPLN) is a nonlinear crystal for high-efficiency wavelength conversion, which has a wide range of light transmission and covers the near and mid-infrared spectral regions. It can realize high-efficiency frequency conversion from visible to mid-infrared band, such as frequency doubling (SHG), sum frequency (SFG), optical parametric oscillation (OPO) and so on. The output of any wavelength in the light transmission range can be realized by the design of the periodic structure, so as to meet the demand of modern optics for the diversification of laser wavelength. PPLN crystals have been widely used in laser display, environmental detection, mid-infrared spectroscopy, all-optical wavelength conversion, optical sensing and other fields. The optical damage threshold and photorefractive threshold of the crystal can be greatly improved by magnesium oxide doping, while maintaining a high nonlinear coefficient. Compared with PPLN with the same composition, MgO:PPLN crystal can work more stably in the lower temperature and visible light range.

     

    Main Features Features

    For use in the visible to mid-infrared wavelength range

    Non-linear frequency conversion such as SHG/SFG/DFG can be realized

    uniform periodic polarization structure

    Precision Waveguide End Surface Polishing and Coating

    High Damage Threshold

     

    Application field Applications

    Laser Display

    mid-infrared spectroscopy

    all-optical wavelength conversion

    optical sensing

    scientific research and medical treatment

    Environmental detection

     

    Device schematic:

     

    Main technical indicators:

    Parameters

    Unit

    Numerical

    Materials

    -

    MgO:PPLN

    Cycle

    μm

    Standard/Custom (8-22)

    Temperature

    ℃

    25-200

    Length

    mm

    Standard/Custom (1-55)

    Width

    mm

    Standard/Custom (1-15)

    Duty cycle

    -

    45%～55%

    Wavelength

    μm

    0.5～4

    Film layer

    -

    Design according to requirements

    effective aperture

    -

    ≥ 90%

    Storage temperature

    ℃

    -20～ 70

  • Model

    Basic characteristics

    Cr⁴*:YAG

    reliable and stable chemical performance

    Easy to operate

    good thermal conductivity

    High damage threshold

    As a high-energy solid state passive Q-switch, long service life

    YAG&Nd:YAG

    High Damage Threshold

    High power

    Less absorption of 1064nm light wave

    Good thermal conductivity and thermal shock characteristics

    good optical properties

    Suitable for multiple ways of working

    YVO,&Nd:YVO4

    The pump bandwidth at about 808nm is about 5 times that of Nd:YAG.

    The stimulated emission cross section at 1064nm is 3 times that of Nd:YAG

    Low light damage threshold, high slope efficiency

    uniaxial crystal, the output is linearly polarized

HY-周期极化铌酸锂（PPLN）晶体(中文版）.pdf

Key words:

Periodic Poled Lithium Niobate (PPLN) Crystal

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