The growing maturity of nanofabrication has ushered massive sophisticated optical
structures available on a photonic chip. The integration of subwavelength-structured …

The basic indexes of all-optical integrated photonic circuits include high-density integration,
ultrafast response and ultralow energy consumption. Traditional methods mainly adopt …

Compact photonic devices for mode manipulation in silicon waveguide are of importance as
fundamental building blocks in on-chip photonic integrated circuits. In this paper, we present …

Reconfigurable photonic devices integrated with silicon waveguides are important building
blocks for future on-chip photonic circuits. In this paper, we focus on the mode order …

Ultra-compact multichannel optical waveguide crossings are designed by a particle swarm
optimized inverse-design method. The 2× 2 TE (TM) device has an ultra-small footprint of 2× …

Recently, the emerging 2-μm waveband has gained increasing interest due to its great
potential for a wide scope of applications. The 2-μm waveband is considered a novel …

Polarization rotating beam splitter (PSR) is a key component of an on-chip polarization
diversity system. However, a conventional PSR is usually designed for a specific use case …

The design of passive photonic devices based on geometry optimization can lead to energy-
efficient, small-footprint, and fabrication-ready geometries. In this work, we propose an angle …

Non-uniform diameter GaAs nanowire array solar cell structures are designed using the
particle swarm optimized inverse design method. The results show that unlike the uniform …

In chip-integrated optical circuits, the polarization beam splitter (PBS) is one of the core
elements that separates TE/TM modes and transmits them to different ports. We designed an …