ITU-T G.681: the first distributed fiber optic sensing standard for in-service terrestrial optical networks
Abstract
Considering the growing interest in adopting distributed fiber optic sensing (DFOS) technology for telecom infrastructure monitoring and protection, ITU-T SG15 recently approved the G.681 Recommendation to address the demand. This standard represents a major milestone and the first step toward building a viable DFOS ecosystem for the telecom industry. It specifies the optical interface parameters for utilizing DFOS for in-service terrestrial networks. This paper discusses DFOS application examples, provides an overview of the G.681 Recommendation, and offers readers insights and rationale behind the development of the standard.
Fields of Study & Subjects
Advanced Photonic Communication Systems
Optical Wireless Communication Technologies
Advanced Fiber Optic Sensors
Publication details
- Journal / source
- Journal of Optical Communications and Networking
- Publisher
- Optica Publishing Group
- Volume
- 18
- Issue
- 4
- Pages
- B1–B1
- Publication date
- 26 January 2026
- Language
- EN