Hermetically Sealed Periodically Poled Lithium Niobate (PPLN) Ridge Waveguide     


The hermetically sealed periodically poled lithium niobate (PPLN) ridge waveguide achieves complete sealing through metal/ceramic packaging materials, effectively blocking external contaminants such as moisture, dust, and corrosive gases (e.g., sulfur dioxide). This prevents internal component oxidation and material degradation. The device is filled with inert gases (e.g., nitrogen) to suppress oxidation reactions, significantly extending its lifespan. The product undergoes rigorous helium mass spectrometry leak testing, with a leakage rate of <5×10⁻⁷ Pa·m³/s, ensuring a leak-proof seal and guaranteeing reliability in extreme environments (high temperature, high humidity, high salt fog). It is suitable for demanding field applications, including maritime operations.



Product model


Name Model Price


Parameter



Features

● Supports nonlinear frequency conversion (SHG/SFG/DFG)

● High conversion efficiency and high damage threshold

● Effectively blocks moisture, dust, and corrosive gases

● Long-term stable operation in harsh environments (high temperature, high humidity)

Specifications

Parameter

Unit

Value

Optics

Input light wavelength

nm

1560

Frequency-doubled light   wavelength

nm

780

Output power

W

2

Polarization extinction   ratio (PER)

dB

≥20

Electrical

Thermoelectric cooler


5V,2A maximum,Qc=8W

NT C impedance @25℃

10

Mechanical

Input and output optical   fiber

-

PM1550+PM780

Environment

Operating temperature

10~+70

Storage temperature

-20~+80


Curve

ppln2.jpg.png

High power 1560nm frequency doubling waveguide output power curve

Dimension

unit(mm)

ppln1.jpg.png

Application

● High-power single-frequency lasers

● Quantum secure communication

● LiDAR optical sensing



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