Advances in lithium niobate photonics: development status and perspectives

G Chen, N Li, JD Ng, HL Lin, Y Zhou, YH Fu… - Advanced …, 2022 - spiedigitallibrary.org
Lithium niobate (LN) has experienced significant developments during past decades due to
its versatile properties, especially its large electro-optic (EO) coefficient. For example, bulk …

Applications of thin-film lithium niobate in nonlinear integrated photonics

MG Vazimali, S Fathpour - Advanced Photonics, 2022 - spiedigitallibrary.org
Photonics on thin-film lithium niobate (TFLN) has emerged as one of the most pursued
disciplines within integrated optics. Ultracompact and low-loss optical waveguides and …

Lithium niobate microring with ultra-high Q factor above 108

R Gao, N Yao, J Guan, L Deng, J Lin, M Wang… - Chinese Optics …, 2022 - opg.optica.org
We demonstrate integrated lithium niobate (LN) microring resonators with Q factors close to
the intrinsic material absorption limit of LN. The microrings are fabricated on pristine LN thin …

Wavelength-division multiplexing on an etchless lithium niobate integrated platform

Y Yu, Z Yu, Z Zhang, HK Tsang, X Sun - ACS Photonics, 2022 - ACS Publications
Arrayed waveguide gratings (AWGs) are widely used as (de) multiplexers in wavelength-
division-multiplexed optical communication systems and as integrated spectrometers in …

Supercontinuum generation in a nonlinear ultra-silicon-rich nitride waveguide

Y Cao, BU Sohn, H Gao, P Xing, GFR Chen, DKT Ng… - Scientific Reports, 2022 - nature.com
Supercontinuum generation is demonstrated in a 3-mm-long ultra-silicon-rich nitride (USRN)
waveguide by launching 500 fs pulses centered at 1555 nm with a pulse energy of 17 pJ …

Ultra-broadband and low-loss edge coupler for highly efficient second harmonic generation in thin-film lithium niobate

X Liu, S Gao, C Zhang, Y Pan, R Ma… - Advanced …, 2022 - spiedigitallibrary.org
Thin-film lithium niobate is a promising material platform for integrated nonlinear photonics,
due to its high refractive index contrast with the excellent optical properties. However, the …

Lithium niobate thin film polarization beam splitter based on asymmetric directional coupling

Y Wu, X Sun, H Li, C Lu, Y Zhang, S Liu… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Polarization devices on lithium niobate thin film (LNTF) are vital components for photonic
integrated circuits (PICs) on the novel platform. Because both linear and nonlinear devices …

Mid-infrared highly efficient, broadband, and flattened dispersive wave generation via dual-coupled thin-film lithium-niobate-on-insulator waveguide

J Jia, Z Kang, Q Huang, S He - Applied Sciences, 2022 - mdpi.com
We designed a structure of dual-coupled ridge waveguide in thin-film lithium-niobate-on-
insulator (LNOI) and numerically studied the highly efficient, broadband, and flattened …

Study of highly coherent mid-infrared supercontinuum generation in CMOS compatible Si-rich SiN tapered waveguide

MR Karim, N Al Kayed, N Jahan… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
A promising 2-mm-long highly coherent air-clad suspended core planar Si-rich SiN tapered
waveguide is proposed for supercontinuum generation in the midinfrared. Supercontinuum …

Experimental investigation on the unbalanced Mach–Zehnder interferometer on lithium niobate thin film

X Sun, Y Wu, C Lu, Y Zhang, H Li, S Liu… - Chinese Optics …, 2022 - opg.optica.org
We design and fabricate an unbalanced Mach–Zehnder interferometer (MZI) via electron
beam lithography and inductively coupled plasma etching on lithium niobate thin film. The …