Optics: measuring and testing – By dispersed light spectroscopy – With synchronized spectrum repetitive scanning
Reexamination Certificate
2006-02-21
2006-02-21
Evans, F. L. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With synchronized spectrum repetitive scanning
C356S328000, C356S334000, C398S034000
Reexamination Certificate
active
07002680
ABSTRACT:
A method and apparatus for measuring characteristics of a single-wavelength optical signal constituting part of a wavelength division multiplexed (WDM) optical signal is provided. The WDM optical signal is adjustably diffracted to select the single-wavelength optical signal. An optical-to-electrical conversion is performed. An electrical sampling signal representing the selected single-wavelength optical signal is generated by one of (a) optically sampling the selected single-wavelength optical signal to generate an optical sampling signal on which the optical-to-electrical conversion is performed, and (b) electrically sampling an electrical signal generated by performing the optical-to-electrical conversion on the selected single-wavelength optical signal.
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Agilent Technologie,s Inc.
Evans F. L.
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