Water penetration sensing wavelength tunable OTDR
- 1 January 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (1) , 1-3
- https://doi.org/10.1109/68.68028
Abstract
A method for sensing water penetration into optical cable using a wavelength tunable optical time domain reflectometers (OTDR) is proposed. The reflectivity at every Fabry-Perot connector gap contained in a monitoring fiber has periodic wavelength dependence. It is shown experimentally that water penetration into a connector gap results in a wavelength period change, the ratio of which coincides with the refractive index of water regardless of the size of the gap.Keywords
This publication has 2 references indexed in Scilit:
- Basic concepts of fiber optic subscriber loop operation systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1990
- Thermal characteristics of phase shift in jacketed optical fibersApplied Optics, 1980