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arXiv · 2308.08740

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

Rui Bao·Lvbin Song·Zhiwei Fang·Jinmin Chen·Zhe Wang·Jian Liu·Lang Gao·Zhaoxiang Liu·Zhihao Zhang·Min Wang·Haisu Zhang·Ya Cheng
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Abstract

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 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 waveguide amplifiers based on Er$^{3+}$-doped thin film lithium niobate platform.

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Rui Bao, Lvbin Song, Zhiwei Fang, Jinmin Chen, Zhe Wang, Jian Liu, Lang Gao, Zhaoxiang Liu, Zhihao Zhang, Min Wang, Haisu Zhang, Ya Cheng. 2023-08-17. On-chip coherent beam combination of waveguide amplifiers on Er$^{3+}$-doped thin film lithium niobate. https://arxiv.org/abs/2308.08740

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