Optics: measuring and testing – For optical fiber or waveguide inspection
Reexamination Certificate
2004-09-01
2009-12-15
Nguyen, Sang (Department: 2886)
Optics: measuring and testing
For optical fiber or waveguide inspection
C356S477000
Reexamination Certificate
active
07633607
ABSTRACT:
Measurement equipment may be calibrated using two different calibration paths. An initial calibration is performed using a calibration path in which an optical element may be coupled for testing after the initial calibration. Once the initial calibration has been performed and the optical element operatively-connected in the main path for testing, one or more re-calibrations occur using another calibration path. The optical element being tested need not be de-coupled during the re-calibration. Each calibration operation produces error correction matrices which are used to correct the measurement matrix generated by the test equipment for the optical element being tested.
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Luna Innovations Incorporated
Nguyen Sang
Nixon & Vanderhye P.C.
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