Abstract: Laser control is implemented with laser drivers and controllers. Two channels, bias and modulation, are adjusted to provide the desired optical performance. Digital potentiometers and resistors are commonly used to perform this adjustment. This article examines the electrical interface issues arising in the design of open loop and closed-loop laser control. The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 166: Interfacing Digitally Controlled Potentiometers and Resistors to Laser Drivers (PDF, 142kB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html We Want Your Feedback! Automatic Updates Would you like to be automatically notified when new application notes are published in your areas of interest? Sign up for EE-Mail™. More Information   APP 166: May 10, 2002 DS1845 Dual NV Potentiometer and Memory Full Data Sheet (PDF, 204kB) Free Samples DS1847 Dual Temperature-Controlled NV Variable Resistor Full Data Sheet (PDF, 272kB) Free Samples DS1848 Dual Temperature-Controlled NV Variable Resistor & Memory Full Data Sheet (PDF, 264kB) Free Samples DS1851 Dual Temperature-Controlled NV Digital-to-Analog Converters Full Data Sheet (PDF, 228kB) Free Samples DS1854 Dual Temperature-Controlled Resistors with Two Monitors Full Data Sheet (PDF, 344kB) DS1857 Dual Temperature-Controlled Resistors with External Temperature Input and Monitors Full Data Sheet (PDF, 824kB) Free Samples DS1858 Dual Temperature-Controlled Resistors with Three Monitors Full Data Sheet (PDF, 428kB) Free Samples   Download, PDF Format (142kB)  AN166, AN 166, APP166, Appnote166, Appnote 166