Guocheng Liu

Title: Guocheng Liu and Photonics Microwave Systems

Introduction

Guocheng Liu is an inventor associated with Ottawa, Canada. His work includes photonics-based systems for processing high-frequency signals used in millimeter-wave communications.

Latest Patents

The supplied information identifies one patent associated with Liu: “Multi-channel analog-signal-input to digital-signal-output down-conversion and digital-signal-input to analog-signal-output up-conversion photonics microwave systems based on quantum dot multi-wavelength lasers.” The patent describes methods and systems for down-converting and up-converting high-frequency signals in millimeter-wave communications.

The system uses a quantum dot multi-wavelength laser source to generate an optical signal with multiple channels. Flexible channel selection supports the generation and processing of radio-frequency signals across higher millimeter-wave bands, including K-band, Ka-band, V-band, and W-band. Depending on channel spacing, the approach can also support 3GPP NR FR2 bands and frequencies in the terahertz range.

Career Highlights

The patent’s described approach combines optical-channel selection with signal conversion, addressing both analog-to-digital down-conversion and digital-to-analog up-conversion. This design is intended to support flexible signal processing across a broad range of high-frequency communications applications. The supplied data lists 1 patent for Liu.

Collaborations

The supplied information names Youxin Mao and Zhenguo Lu as Liu’s coworkers. Their specific contributions to the patent or related work were not provided.

Conclusion

Guocheng Liu’s listed patent focuses on quantum dot multi-wavelength laser technology for flexible signal conversion in millimeter-wave communications, with potential operation extending into the terahertz range.