Determination of an optical property of a DUT by OTDR...

Details Determination of an optical property of a DUT by OTDR... Determination of an optical property of a DUT by OTDR...

2008-01-08

2008-01-08

Nguyen, Tu T (Department: 2886)

Optics: measuring and testing

For optical fiber or waveguide inspection

Reexamination Certificate

active

07317518

ABSTRACT:
The present invention relates to an apparatus and to a method of determination of an optical property of a DUT, in particular of an optical fiber, by means of OTDR, comprising the steps of: coupling an initial optical signal into the DUT, detecting a response signal of the DUT, and determining the optical property of the DUT by means of OTDR using at least a second order backscatter part of the response signal.

REFERENCES:
patent: 4497575 (1985-02-01), Philipp
patent: 6708004 (2004-03-01), Homsey
patent: 7016024 (2006-03-01), Bridge et al.
Accurate Reflectance and Optical Fibre Backscatter Parameter Measurements Using an OTDR, Dec. 6, 1990, Stevenage, Herts., GB.

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