Raised Cosine (RC) Pulse Shaping for Next Generation Multi-Mode Fiber (MMF) Links

Enables lower bandwidth hardware components to support higher data rates—more than 100 Gbps—while maintaining low cost and low power consumption

This innovation cost-effectively increases data throughput in existing communications infrastructures, doubling current data rates in inexpensive vertical-cavity surface-emitting laser (VCSEL) technologies.
Achieving higher data rates in short-reach optical communications typically requires higher fiber counts that increase cost and form factor. To overcome these barriers, Georgia Tech’s innovation uses RC pulse shaping for VCSEL MMF links (e.g., four-level pulse amplitude modulation [PAM4] that have fewer fiber requirements) to enable lower bandwidth hardware components to support data rates over 100 Gbps.

RC pulse shapes are generated using low-resolution digital-to-analog converters and field-programmable gate arrays that can be easily mapped to application-specific integrated circuits in silicon carbide metal-oxide semiconductors (SiC MOS). Georgia Tech’s modulation and pulse shaping technique is supported by digital signal processing algorithms that can be applied at both the transmitter and receiver.



Contact Information

Georgia Tech Office of Technology Licensing
Email: techlicensing@gtrc.gatech.edu