Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-07-25
1998-10-20
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359155, 359173, 356 731, H04B 1012, H04B 1006
Patent
active
058255168
ABSTRACT:
An optical power meter for a fiber optic link includes a photodetector that generates a current proportional to the energy of the light transmission in the fiber optic, a current-to-voltage converter that converts the current to a proportional voltage, and a voltage-to-frequency converter that converts the voltage to a digital pulse train proportional to the amplitude of the voltage. The digital pulse train increments a counter, which is read periodically by a microprocessor. The value read by the microprocessor corresponds to the average power in the light transmission. This digital value is converted to a power value in dBm and stored on a mass storage device and displayed on a liquid crystal display. The liquid crystal display shows the power level over time so that losses due to intrinsic and extrinsic loss factors can be quickly and easily identified. The power meter also includes software executed by the microprocessor that allows the user to input a range within which the power can fluctuate. If the measured power falls outside of that range, however, the power meter sets off an audible or visual warning signal to indicate a perturbation to the fiber optic link such as a mechanical stress, connector misalignment, or a security breach.
REFERENCES:
patent: 4178101 (1979-12-01), Booth
patent: 4435850 (1984-03-01), Bowen et al.
patent: 4578671 (1986-03-01), Flowers
patent: 4636029 (1987-01-01), Johansson et al.
patent: 5237441 (1993-08-01), Nhu
patent: 5258615 (1993-11-01), Thorley
patent: 5485296 (1996-01-01), Healey et al.
patent: 5535038 (1996-07-01), Hinch
patent: 5557265 (1996-09-01), Moothart et al.
patent: 5570217 (1996-10-01), Fleuren
patent: 5596440 (1997-01-01), Patz et al.
Hewlett--Packard Company
Pascal Leslie
LandOfFree
Optical power meter for detecting loss factors in fiber optic co does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical power meter for detecting loss factors in fiber optic co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical power meter for detecting loss factors in fiber optic co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-250917