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:
Oct. 20, 1998
Filed:
Aug. 16, 1996
Edgar Leckel, Jettingen, DE;
Emmerich Mueller, Aidlingen, DE;
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
This invention relates particularly to an arrangement for operating and testing in the field of optical communication networks and to an arrangement and a method for an operational test of optical devices, such as erbium-doped fiber amplifiers (EDFAs). The device under test is connected via optical fibers with a tunable laser and an optical signal analyzer. A pattern generator controls the tunable laser to generate a set of signals with different wavelengths .lambda.1 to .lambda.4, one after the other, within the recovery time of the device under test. Thereby, the operational behavior of a device under test, having a recovery time, and which is applied to several signals with different wavelengths present at the same time, can be tested by a single tunable laser.