Real-time compensation of the time-skew and phase-mismatch for Heterodyne DAS system
Abstract
The paper is about real-time compensating the time-skew and phase-mismatch in one of orthogonal polarizations of the 90° optical hybrid, which is a key module of heterodyne distributed acoustic sensing system.
- Publication:
-
9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
- Pub Date:
- January 2019
- DOI:
- 10.1117/12.2504862
- Bibcode:
- 2019SPIE10839E..09X