Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1995-04-21
1997-01-07
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
G01N 2127, G01N 2159
Patent
active
055922848
ABSTRACT:
Bi-directional attenuation of an optical fiber is measured using a half duplex Manchester type fiber optic transceiver having receiving circuitry that combines optical power and wavelength meter. A communication protocol insures sequential timings of digital transmission/reception sequences and measures from two transceivers, one at each side of the fiber under test. Measured wavelengths are used to digitally compensate the power level wavelength dependency of the transceivers optical receiving paths. Attenuations from both directions are determined using the compensated measured power levels and digitally transmitted power levels. Fiber optic jumper cables connecting the transceivers to the fiber under test are independently referenced at each side from the single connector of the transceiver.
REFERENCES:
patent: 4234253 (1980-11-01), Higginbotham et al.
patent: 4673291 (1982-06-01), Heckmann
patent: 4726676 (1988-02-01), Maslaney et al.
patent: 4737026 (1988-04-01), Dalgoutte et al.
patent: 5305078 (1994-04-01), Lamonde
patent: 5455672 (1995-10-01), Lamonde et al.
McGraw Vincent P.
Nortech Fibronic Inc.
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