Method and apparatus for testing optical fiber based networks

Details Method and apparatus for testing optical fiber based networks Method and apparatus for testing optical fiber based networks

2007-10-09

2007-10-09

Nguyen, Tu T. (Department: 2886)

Optics: measuring and testing

For optical fiber or waveguide inspection

Reexamination Certificate

active

11301688

ABSTRACT:
A method offering the capacity for safe in service testing of optical network using time domain reflectometer is disclosed. The network utilizes end equipment devices having filters designed to reject specific frequency range, and preferably a frequency range that lies between two desired frequency ranges. The signal used for the reflectometer is specifically selected to be within the rejected frequency range. The selection of the reflectometer frequency allows for in use testing without effecting the desired frequencies, as well as minimizing damage to sensitive components within the end equipment devices.

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