- Feb 22, 2008
First of all, super cool forum, lots of useful info. Im new here - building my first laser and digging for clues so please be merciful on my stupid questions :thanks:
Im reading through glued posts regarding drivers and have very simple (i hope question)
Why different drivers are described as appropriate for certain laser diode wavelength type? Is it only about providing proper Vout and Io? or is there something more? My knowledge of electrical engineering is poor so I need simple explanation.
Welcome to LPF, you should create a thread in the welcome section to introduce yourself.
Different wavelength diodes have different voltage drops, so you need a driver capable of supplying an appropriate voltage. You also need a driver capable of supplying an appropriate current, some can only supply too much, others can't supply enough.
Laser diode drivers are constant current, meaning they always output the same current and adjust the voltage as necessary to meet that setting.