HFAN-02.3.2: Maintaining Average Power and Extinction Ratio, Part 2, MAX3863 Laser Driver and DS1847 Digital Resistor


The purpose of this application note series (Part 1 and Part 2) is to demonstrate by practical examplehow the laser properties can change over temperature, and how to compensate for these changes in orderto maintain constant extinction ratio and average power in fiber optic transceivers.