Abstract
This disclosure describes a coherent optical detection technique based on single sideband (SSB) reception that enables finer per-wavelength speed granularity while maintaining high efficiency in terms of power and components-count. By recovering real-valued pulse amplitude modulation (PAM) signals from either the lower or upper optical sideband, the SSB coherent receiver architecture reduces required component bandwidth and can achieve signal-to-noise ratio (SNR) performance comparable to or better than conventional coherent detectors. The technique supports integration with polarization-folding, time-diversity coherent optics to further enhance system scalability and reduce receiver complexity. This approach enables the design of cost-effective, high-speed, low-power transceivers for short-reach optical applications such as datacenter interconnects and access networks, while preserving compatibility with legacy systems and mitigating sensitivity to chromatic dispersion.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
NA, "Single Sideband Coherent Optical Detection", Technical Disclosure Commons, (June 04, 2025)
https://www.tdcommons.org/dpubs_series/8191