Fiber Optical Sensing Utilizing Correlation Techniques
- Resource Type
- Conference
- Authors
- Azendorf, Florian; Sandmann, Andre; Jansen, Sander; Eiselt, Michael
- Source
- 2023 IEEE Photonics Society Summer Topicals Meeting Series (SUM) Photonics Society Summer Topicals Meeting Series (SUM), 2023 IEEE. :1-2 Jul, 2023
- Subject
- Photonics and Electrooptics
Optical fibers
Correlation
Phase measurement
Coherence
Delays
Optical sensors
Photonics
OTDR
Optical Fiber Sensing
Group Delay
Phase Evaluation
- Language
- ISSN
- 2376-8614
We review the application of correlation for fiber optical sensing using direct or coherent detection. The Correlation-OTDR with direct detection provides a group delay measurement resolution in the order of a few picoseconds, while coherent detection enables dynamic event evaluation by analyzing the phase information.