What Does PPLN Stand For?

PPLN stands for Periodically Poled Lithium Niobate

PPLN, or Periodically Poled Lithium Niobate, is a non-linear optical material characterized by its periodic poling structure, which enhances its electro-optic properties. This technique allows for efficient frequency conversion processes, such as second-harmonic generation and optical parametric amplification. PPLN is widely used in photonics applications, including telecommunications, laser systems, and quantum optics, due to its versatility and ability to operate in various wavelength ranges.