Fiber–Chip–Fiber Mode/Polarization/Wavelength Transmission and Processing with Few-Mode Fiber, (de)Multiplexing SiO2 Chip and ROADM Si Chip (Laser Photonics Rev. 18(7)/2024)

Abstract

Few-Mode Fiber–Chip–Fiber Communication System

A multi-dimensional (mode, polarization, wavelength) fiber–chip–fiber data transmission and processing system is proposed and demonstrated using few-mode fiber, 3D (de)multiplexing SiO₂ chip inscribed by femtosecond laser direct writing, and ROADM Si chip fabricated by a standard lithography process, which achieves 96-channel (2 polarizations, 3 modes, 16 wavelengths) data transmission with a capacity of 4.032 Tbit/s. The demonstration may find potential applications in high-capacity multi-dimensional optical communication systems. For further details, see article number 2300489 by Kang Li, Chengkun Cai, Jian Wang, and co-workers.