Optics: measuring and testing – For optical fiber or waveguide inspection
Reexamination Certificate
2008-07-17
2010-12-28
Nguyen, Tu T (Department: 2886)
Optics: measuring and testing
For optical fiber or waveguide inspection
Reexamination Certificate
active
07859654
ABSTRACT:
A frequency-scanned optical time domain reflectometry technique includes launching a plurality of interrogating pulses into an optical fiber at a plurality of optical carrier frequencies. A Rayleigh backscatter signal is detected for each interrogating pulse as a function of time between the launching of the pulse and the detection of the backscatter signal. The time resolved Rayleigh backscatter signal at each optical frequency may then be examined to determine a distribution of a physical parameter along the length of the optical fiber.
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Nguyen Tu T
Schlumberger Technology Corporation
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