On-chip coherent beam combination of waveguide amplifiers on Er${}^{3+}$-doped thin film lithium niobate

Rui Bao, Lvbin Song, Zhiwei Fang +9

We demonstrate on-chip coherent beam combination of two waveguide amplifiers on Er${}^{3+}$-doped thin film lithium niobate (Er: TFLN) platform. Our device is built based on an elect…