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arXiv · 2305.18059

On-chip arrayed waveguide grating fabricated on thin film lithium niobate

Zhe Wang·Zhiwei Fang·Zhaoxiang Liu·Youting Liang·Jian Liu·Jianping Yu·Ting Huang·Yuan Zhou·Haisu Zhang·Min Wang·Ya Cheng
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Abstract

We design an on-chip 8-channel TFLN AWG and fabricate the device using photolithography assisted chemo-mechanical etching (PLACE) technique. We experimentally measure the transmission of the fabricated TFLN AWG near the central wavelength of 1550 nm. We obtain an on-chip loss as low as 3.32 dB, a single-channel bandwidth of 1.6 nm and a total-channel bandwidth of 12.8 nm. The crosstalk between adjacent channels was measured to be below -7.01 dB within the wavelength range from 1543 nm to 1558 nm, and the crosstalk between non-adjacent channels was below -15 dB.

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Zhe Wang, Zhiwei Fang, Zhaoxiang Liu, Youting Liang, Jian Liu, Jianping Yu, Ting Huang, Yuan Zhou, Haisu Zhang, Min Wang, Ya Cheng. 2023-05-29. On-chip arrayed waveguide grating fabricated on thin film lithium niobate. https://arxiv.org/abs/2305.18059

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