Optical fibre backscatter polarimetry

Details Optical fibre backscatter polarimetry Optical fibre backscatter polarimetry

2006-10-31

2006-10-31

Healy, Brian (Department: 2883)

Optical waveguides

Polarization without modulation

C385S012000, C398S029000, C398S081000

Reexamination Certificate

active

07130496

ABSTRACT:
A method of and apparatus for determining the spatial distribution of polarisation properties of an optical fiber (1). Pulses (7) of light are transmitted along the optical fiber (1) and the polarisation state of light backscattered from portions e and elements R of the optical fiber (1) detected. A spatial distribution of linear retardance δ, orientation of linear retardance axes q and circular retardance axes can be accurately determined. This has application in the analysis of Polarisation Mode Dispension (PMD) in telecommunications as well as, inter alia, strain, stress, temperature and electric current and voltage measurement using optical fibers.

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