Diagnosis method and diagnosis chip for the determination of...

Details Diagnosis method and diagnosis chip for the determination of... Diagnosis method and diagnosis chip for the determination of...

2006-03-13

2010-02-09

Toatley, Jr., Gregory J (Department: 2877)

Optics: measuring and testing

For optical fiber or waveguide inspection

C398S009000, C398S025000, C398S028000

Reexamination Certificate

active

07659969

ABSTRACT:
For determination of the bandwidth of optical fibers, the invention proposes a method which comprises the injection of light at a first optical power level and at a first frequency into an optical fiber, as well as the measurement of a first signal level as a function of the optical power level of the light passing through the fiber at the first frequency, the injection of light at the second optical power level and at a second frequency into the optical fiber, the measurement of a second signal level as a function of the optical power level of the light passing through the fiber at the second frequency, and the determination of the bandwidth of the fiber as a function of the first and second optical power levels and/or of the measured first and second signal levels using a predetermined rule which describes the frequency-dependant attenuation response of the fiber.

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