1 results about "Lithium niobate" patented technology

The invention discloses a photonic chip and a preparation method thereof. The chip includes a lithium niobate film modulator array (1), a first optical coupling array (2) and a silica waveguide wavelength division multiplexer (3), the lithium niobate film modulator array (1) is composed of one or more lithium niobate film modulators and used for modulating light signals; the first optical couplingarray (2) is composed of one or more first optical coupling structures, one ends of the first optical coupling structures is connected to the corresponding lithium niobate film modulators, and the other ends of the first optical coupling structures is connected to the silica waveguide wavelength division multiplexer (3) to transfer the modulated light signals to the silica waveguide wavelength division multiplexer (3); and the silica waveguide wavelength division multiplexer (3) is used for wavelength division multiplexing to the modulated light signals. Single chip integration of an on-chiplithium niobate film modulator and an on-chip wavelength division multiplexing structures is achieved, and part integration is improved.