Method for detecting disengagement of an optical fiber, an...

Details Method for detecting disengagement of an optical fiber, an... Method for detecting disengagement of an optical fiber, an...

2006-02-21

2006-02-21

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C398S021000

Reexamination Certificate

active

07002735

ABSTRACT:
A method for detecting a connector disengagement of an optical fiber amplifier and a transmission optical fiber connected thereto, the optical fiber amplifier including a doped optical fiber and a pumping light source, and a transmission optical fiber including at least one connecting portion connected to an output of the optical fiber amplifier, includes the steps of: measuring a reflection from the transmission optical fiber to the optical fiber amplifier; and comparing the reflection to an allowable range between a first threshold that is greater than a predetermined reflection in the absence of a connector disengagement, and a second threshold that is smaller than the predetermined reflection in the absence of a connector disengagement; determining that there is no connector disengagement when the measured reflection is within the allowable range; and determining that there is a connector disengagement otherwise.

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