Towards Polarization-Insensitive Coherent Coded Phase OTDR
We explore the alternatives for interrogating a fiber sensor from the polarization point of view, and demonstrate a better accuracy with dual polarization probing for coherent phi-OTDR compared with single polarization probing.
Code (0)
등록된 구현이 없습니다.
Similar Papers 제목 키워드 기반
Introducing Coherent MIMO Sensing, a fading-resilient, polarization-independent approach to phase-OTDR
Nowadays, long distance optical fibre transmission systems use polarization diversity multiplexed signals to enhance transmission performance. Distributed acoustic sensors (DAS) use the same propagation medium ie. single…
DiversityEnhancing performance of coherent OTDR systems with polarization diversity complementary codes
Monitoring the optical phase change in a fiber enables a wide range of applications where fast phase variations are induced by acoustic signals or vibrations in general. However, the quality of the estimated fiber respon…
DiversitySensitivityQuantum Noise Limited Temperature-Change Estimation for Phase-OTDR Employing Coherent Detection
The quantum limit is a fundamental lower bound on the uncertainty when estimating a parameter in a system dominated by the minimum amount of noise (quantum noise). For the first time, we derive and demonstrate a quantum …
PDL Impact on Linearly Coded Digital Phase Conjugation Techniques in CO-OFDM Systems
We investigate the impact of polarization-dependent loss (PDL) on the linearly coded digital phase conjugation (DPC) techniques in coherent optical orthogonal frequency division multiplexing (CO-OFDM) superchannel system…
SagnacAssisted Enhanced OTDR for Distributed Acoustic Sensing: A Standardized Benchmark and Engineering Evaluation Framework
Phase-sensitive optical time-domain reflectometry ($φ$-OTDR) is widely used in large-scale distributed acoustic sensing (DAS) because it provides distributed spatiotemporal monitoring over long sensing distances. Its fie…