Ali Allousch explores long-range acoustic sensing with CC-OTDR at OFS29
Poster session showcases CC-OTDR’s versatility with sensing over 100km, 10m resolution and 1–2m event localization across 400 meters
- Speakers: Ali Allousch, senior engineer of advanced technology at Adtran
- Topics: Acoustic sensing over 100km using coherent-correlation OTDR and Manchester coding
- When: Tuesday, May 27, 5:30 p.m. WET
- Where: Where: OFS29 – 29th International Conference on Optical Fiber Sensors, Porto, Portugal https://ofs29.org
Distributed acoustic sensing (DAS) turns standard fiber into a high-density vibration sensor, helping monitor critical infrastructure, detect intrusions and enhance situational awareness. Yet scaling this technology over long distances while maintaining fine resolution remains a challenge. This poster showcases the versatility of coherent-correlation OTDR (CC-OTDR) in distributed acoustic sensing, enabling long-range sensing beyond 100km with 10-meter resolution, and precise event localization within 1–2 meters across a 400-meter span.
In this session, Ali Allousch will present research demonstrating how this technique enables acoustic sensing beyond 100km. The results demonstrate 10-meter resolution across the full span and the ability to detect acoustic events over 400 meters with a refined 1–2 meter resolution. These advances highlight the potential for smarter, more scalable DAS deployments in energy, transportation and defense sectors.