Distributed Temperature and Strain Sensing Using Brillouin Optical Time-Domain Reflectometry Over a Few-Mode Elliptical-Core Optical Fiber

We propose a single-ended Brillouin-based sensor in elliptical-core few-mode optical fiber for multi-parameter measurement using spontaneous Brillouin scattering. Distributed sensing of temperature and strain is demonstrated over 0.5 km elliptical-core few-mode fiber.