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:
Jul. 15, 2008
Filed:
Aug. 16, 2005
Michael A. Robinson, Fremont, CA (US);
Gideon Z. Romm, Bronx, NY (US);
Randall P. Clark, San Jose, CA (US);
Frederick W. Miller, San Jose, CA (US);
Michael A. Robinson, Fremont, CA (US);
Gideon Z. Romm, Bronx, NY (US);
Randall P. Clark, San Jose, CA (US);
Frederick W. Miller, San Jose, CA (US);
Avago Technologies Fiber IP Pte Ltd, Singapore, SG;
Abstract
A method for determining a condition of the laser system includes determining a change in a laser current from an initial value. A method for measuring a laser current includes determining a difference between the values of a power supply current, which is the value of the laser current. A method for measuring a transmitted power includes generating a first control signal that sets a magnitude of a bias current supplied to a laser, generating a second control signal that sets a of a modulation current supplied to the laser, and determining a difference between values of a high and a low transmitted powers. A method for measuring a received optical power includes determining a received OMA corresponding to the power signal, which is the transmitted OMA minus a known loss through a calibration fiber that couples the laser transmitter to the laser receiver.