Patent ID: 7065111
Filing Date: 2006-06-20
Classification: H01S

Abstract:
1. A method for testing a laser, comprising: operating the laser at a first bias setting, the laser having a data rate at the first bias setting of about 10 Gb/s; measuring a first side mode suppression ratio of the laser output based on a first ratio of highest and next highest optical power peaks as a function of a first wavelength while operating the laser at the first bias setting and at a data rate of about 10 Gb/s; operating the laser at a second bias setting, the laser having a data rate at the second bias setting of about 10 Gb/s; measuring a second side mode suppression ratio of the laser output based on a second ratio of highest and next highest optical power peaks as a function of a second wavelength while operating the laser at the second bias setting and at a data rate of about 10 Gb/s; and generating a test result for the laser in accordance with a difference between the first and second side mode suppression ratios.