Optics: measuring and testing – For optical fiber or waveguide inspection
Reexamination Certificate
2006-06-06
2006-06-06
Nguyen, Tu T. (Department: 2877)
Optics: measuring and testing
For optical fiber or waveguide inspection
Reexamination Certificate
active
07057713
ABSTRACT:
A method and device are provided for measuring the non-linear coefficient and/or the dispersion coefficient of an optical fiber in an optical data transmission path by four-wave mixing, wherein at least two pump signals of known intensity with at least two different input frequencies are injected into one end of an optical fiber to be measured, in order to obtain at least two signals with at least two new frequencies by four-wave mixing, with the intensity of the backscattered signals of the new frequencies being measured at the feed side and the non-linear coefficent and/or the dispersion coefficient being determined from the measured intensities.
REFERENCES:
patent: 6067149 (2000-05-01), Gripp et al.
patent: 0 819 926 (1998-01-01), None
Elbers Jörg-Peter
Glingener Christoph
Gottwald Erich
Scheerer Christian
Bell Boyd & Lloyd LLC
Nguyen Tu T.
Siemens Aktiengesellschaft
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