A5043039760- Photonic and Optical Devices
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Diamond and Carbon-based Materials Research
- Semiconductor Lasers and Optical Devices
- Advanced ceramic materials synthesis
- High-pressure geophysics and materials
- Advanced optical system design
- Photorefractive and Nonlinear Optics
- Boron and Carbon Nanomaterials Research
- Advanced Fiber Laser Technologies
- Solid State Laser Technologies
- Photonic Crystals and Applications
Hong Kong University of Science and Technology
2024-2025
University of Hong Kong
2024-2025
Mode-division multiplexing (MDM) in optical fibers enables multichannel capabilities for various applications, including data transmission, quantum networks, imaging, and sensing. However, high-dimensional fiber systems, usually necessity bulk-optics approaches launching different orthogonal modes into the fiber, multiple-input multiple-output digital electronic signal processing at receiver to undo arbitrary mode scrambling introduced by coupling transmission a multi-mode fiber. Here we...
Abstract Space‐division multiplexing (SDM) is one of the key enabling technologies to increase capacity fiber communication systems. However, implementing SDM‐based systems using multimode has been challenging with need for compact, low‐cost, and scalable mode de/multiplexer (DE/MUX). Here a novel integrated MUX few‐mode fibers (FMFs) presented which can launch up eight spatial polarization channels. The new design composed 2D grating coupler (MMGC), highly compact spot size converters...
We demonstrated a silicon microring modulator with an uncorrupted free spectral range of 4.5 THz. A single-lane data rate 256 Gbps utilizing PAM-4 can be achieved, highlighting its potential for advancing high-bandwidth wavelength-division multiplexing communications.
Group velocity and impedance matches are prerequisites for high-speed Mach–Zehnder electro-optic (EO) modulators. However, not all platforms can realize matching conditions, restricting modulation in many practical conditions. Here, we propose demonstrate a quasi-matching scheme to satisfy the group characteristic by cascading fast-wave slow-wave traveling wave electrodes. The effective be flexibly adjusted changing ratio of Moreover, is experimentally verified demonstrating 6 mm long EO...
The demand for structured light with a reconfigurable spatial and polarization distribution has been increasing across wide range of fundamental advanced photonics applications, including microscopy, imaging, sensing, communications, quantum information processing. Nevertheless, the unique challenge in manipulating structure after optical fiber transmission is necessity to dynamically address inherent unknown matrix, which can be affected by factors like variations stress inter-modal...
A six-channel multimode integrated optical I/O supporting two orthogonal polarizations of LP01, LP11a, and LP11b modes in a few-mode fiber was experimentally demonstrated, showing chip-to-fiber coupling efficiencies > –6.1dB for future Tbps-per-wavelength interconnects.