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:
Mar. 25, 2008
Filed:
Sep. 09, 2005
Irene Quek, Singapore, SG;
Siok Been Yeo, Singapore, SG;
Khia Ho Chang, Singapore, SG;
Seng Yee Chua, Singapore, SG;
Irene Quek, Singapore, SG;
Siok Been Yeo, Singapore, SG;
Khia Ho Chang, Singapore, SG;
Seng Yee Chua, Singapore, SG;
Avago Technologies Fiber IP Pte Ltd, Singapore, SG;
Abstract
A method of controlling a laser diode measures an average light output power of the laser diode and compares the average light output power to a desired average light output power within a target range. If the average light output power is not within the target range, the slope efficiency is determined by measuring two light output powers at two different bias conditions. Each of the two light output powers is greater than a selected minimum light output power, which insures that each measurement occurs within the slope efficiency portion of the laser diode curve. A new bias current for the laser diode is calculated based on the measured slope efficiency so as to produce a new average light output power within the target range.