1. YUAN J, DU J, LIU J, et al. Arayed-waveguide-grating based on proton exchange and etching combined fabrication over bulk lithium-niobate substrate[C]//2022 IEEE 24th International Workshop on Multimedia Signal Processing (MMSP), September 26–28, 2022, Shanghai, China. New York: IEEE, 2022: 1–4.
2. NIU Y, YAN X, CHEN J, et al. Research progress on periodically poled lithium niobate for nonlinear frequency conversion[J]. Infrared physics & technology, 2022:104243.
3. TAKUSHI K, TAKESHI U, SHIMPI S, et al. Over-30-dB gain and 1-dB noise figure phase-sensitive amplification using a pump-combiner-integrated fiber I/O PPLN module[J]. Optics express, 2021, 29(18): 28824–28834.
4. CHEN Z Y, CHENG J X, CHEN H X, et al. High performance Zn diffused Mg doped LN crystal ridge waveguide devices[J]. Journal of synthetic crystals, 2022, 51(11): 1823.
5. LEWIS G C, SAM A B, ALAN C G, et al. CW demonstration of SHG spectral narrowing in a PPLN waveguide generating 2.5 W at 780 nm[J]. Optics express, 2020, 28(15/20): 21382.