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An electro-optically tunable arrayed waveguide grating fabricated on thin film lithium niobate

Published 21 Jul 2024 in physics.optics and physics.app-ph | (2407.15225v1)

Abstract: We design and fabricate an 8-channel thin film lithium niobate (TFLN) arrayed-waveguide grating (AWG) and demonstrate the electro-optical tunability of the device. The monolithically integrated microelectrodes are designed for waveguides phase modulation and wavelength tunning. Experiments show that the fabricated electro-optically controlled TFLN AWG has a channel spacing of 200 GHz and a wavelength tuning efficiency of 10 pm/V.

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