The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2002
Filed:
Mar. 24, 2000
Ernest E. Bergmann, Fountain Hill, PA (US);
Gail A. Bogert, Bethlehem, PA (US);
Agere Systems Guardian Corp., Orlando, FL (US);
Abstract
A planar waveguide monitor is shown for determining the wavelength and power of component optical signals of a multiplexed optical signal. The monitor includes an optical waveguide router similar to a Dragone router with at least twice as many output waveguides as the number of component optical signals. An array of optical detectors is disposed to detect output optical signals from the output waveguides. The optical detectors produce a plurality of electrical output signals corresponding to the power of each detected output optical signal. The monitor includes a programmable computer to compare the electrical output signals to a predetermined set of output responses. The power and wavelength of each component optical signal of the multiplexed optical signal may be determined from this comparison.