Characterization of active and passive optical properties of...

Optics: measuring and testing – For optical fiber or waveguide inspection

Reexamination Certificate

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Reexamination Certificate

active

06977720

ABSTRACT:
Characterizing active and passive properties of an optical device involves applying a local oscillator signal to a device under test (DUT) and providing a portion of the local oscillator signal (referred to as the reference local oscillator signal) directly to the an optical analyzer. Providing the reference local oscillator signal to the optical analyzer enables interferometric measurements associated with the DUT to be obtained along with direct measurements, where the interferometric measurements result from combining the portion of the local oscillator signal that is applied to the DUT with the reference local oscillator signal. The interferometric measurements are used to characterize passive properties of the DUT while the direct measurements are used to characterize active properties of the DUT.

REFERENCES:
patent: 5677781 (1997-10-01), Mori et al.
patent: 2004/0001194 (2004-01-01), Wilstrup et al.
patent: 0 594 178 (1993-10-01), None
patent: 1113250 (2000-11-01), None
patent: 1148664 (2001-04-01), None
Vanwwiggeren, Gregory D., “Single-Scan Interferometric Component Analyzer,” IEEE Photonics Technology Letters, vol. 15, No. 2, Feb. 2003.
Vanwiggeren, Gregory D., “Swept-Wavelength Interferometric Analysis of Multiport Components,” IEEE Photonics Technology Letters, Submitted Feb. 11, 2002.
European Search Report Dated: Dec. 17, 2004.

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