On-chip coherent beam combination of waveguide amplifiers on Er3+-doped thin film lithium niobate

作者：Bao, Rui; Song, Lvbin; Chen, Jinming; Wang, Zhe; Liu, Jian; Gao, Lang; Liu, Zhaoxiang; Zhang, Zhihao; Wang, Min; Zhang, Haisu; Fang, Zhiwei^*; Cheng, Ya

来源：Optics Letters, 2023, 48(24): 6348-6351.

DOI：10.1364/OL.504540

We demonstrate on-chip coherent beam combination of two waveguide amplifiers on Er3+-doped thin film lithium nio-bate (Er:TFLN) platform. Our device is built based on an electro-optic modulator fabricated on Er:TFLN. The output power of the coherently combined amplifiers is measured as high as 12.9 mW, surpassing that of previous single wave-guide amplifiers based on an Er3+-doped thin film lithium niobate platform.

• 单位
  中国科学院