https://wiki.fa-fo.de/ 2026-04-20T02:31:37+00:00 https://wiki.fa-fo.de/ https://wiki.fa-fo.de/_media/wiki:logo.png text/html 2026-04-14T08:22:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.fa-fo.de/projects:optics:log?rev=1776154959&do=diff Lab Notes for Optics Experiments Day 2026-04-04 (k8ik, rahix, many guests) We presented our low-cost optics and the interferometer at EH23! Watch our talk here: Budget Beams – Laser Experiments in a Hacker Lab During the event, our laser diode broke (well, rahix fed it too much voltage really) so we scrambled to disassemble a DVD drive and extract the red 650nm diode from it. We kept the collimation optics from the DVD drive and hot-glued the entire subassembly to an optics mount. It took… text/html 2026-04-14T08:19:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.fa-fo.de/projects:optics:start?rev=1776154795&do=diff Laser Optics & Interferometry Using lasers for science! Well, mainly metrology right now. We are building an interferometer for measuring nanometer-scale displacements of piezo actuators. Also check the sibling project of building a low-cost 3d-printed system of optomechanical components. Links