Optical Integrated Sensing and Communication (O-ISAC): A PRISMA-Guided Systematic Survey

This OSF project archives the protocol, data, and reproducibility artifacts for a comprehensive survey article targeting IEEE Communications Surveys & Tutorials (COMST). The survey—entitled "Optical Integrated Sensing and Communication (O-ISAC): A PRISMA-Guided Systematic Survey"—systematically maps the emerging O-ISAC paradigm across four optical modalities: fiber (DAS/DFOS), free-space optical (FSO), visible light communication (VLC/LiFi), and photonic-terahertz (photo-THz). Drawing on a PRISMA 2020-compliant corpus of 221 peer-reviewed studies (2020–2025), the work constructs a unified physical-layer taxonomy, develops a standardized metric-reporting contract (separating bandwidth-limited resolution from estimator-dependent accuracy and CRB/FIM bounds), synthesizes rate–range–resolution trade-off frontiers, and evaluates cross-domain technology transfer including enabling technologies such as optical RIS and optical phased arrays (OPA). The repository contains the registered PRISMA protocol, database-specific search strings, screening and exclusion logs, schema-driven extraction artifacts, TQAF quality scores, and analysis notebooks. No pooled meta-analysis is performed due to metric and scenario heterogeneity; instead, structured narrative synthesis and quantitative descriptive trade-off analysis are used.