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:
Aug. 17, 2004
Filed:
Sep. 18, 2002
Charles W. Miller, San Jose, CA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
A key requirement of a fiber optic communication system is its ability to transmit data from one location to another relatively free of errors in the data stream. The data stream error rate is a function of the error rate of the laser module utilized to transmit the data. A fast and efficient method of testing a laser module, in order to estimate its bit error rate, is to measure side mode suppression ratios of the laser module output while operating the laser module at each of a first and second bias setting, and to generate a test result for the laser module in accordance with the difference between the first and second side mode suppression ratio measurements. Furthermore, a system is provided for performing this laser module testing method.