Wavelength dependence measuring system

Details Wavelength dependence measuring system Wavelength dependence measuring system

2005-05-31

2005-05-31

Nguyen, Tu T. (Department: 2877)

Optics: measuring and testing

For optical fiber or waveguide inspection

Reexamination Certificate

active

06900883

ABSTRACT:
A swept-wavelength loss measuring system is provided with an arrangement including a tunable laser source that outputs light to a DUT with the wavelength being continuously varied, and outputs measuring trigger signals at arbitrary intervals, at least one optical power meter for measuring an intensity of light transmitted through the DUT in response to reception of each of the measuring trigger signals, a wavelength measuring unit for measuring a wavelength of the outputted light from the tunable laser source in response to reception of each of the measuring trigger signals, and an arithmetic operation unit carrying out an arithmetic operation of the outputs from the optical power meter and the wavelength measuring unit to output a light intensity value relative to each wavelength. The arrangement assures accuracy of the measured wavelength.

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patent: 2002/0196426 (2002-12-01), Stolte
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European Search Report.

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