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| projects:optics:log [2026/04/14 08:19] – [Lab Notes for Optics Experiments] rahix | projects:optics:log [2026/04/14 08:22] (current) – [Day 2026-04-04 (k8ik, rahix, many guests)] rahix | ||
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| 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. | 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. | ||
| - | We managed to demonstrate the fringe movement from the piezo quite a few times. | + | We managed to demonstrate the fringe movement from the piezo quite a few times. We borrowed a different power supply to drive it. This one seems to lead to a slow ramp-up of voltage (fringes move slowly when turning on) and an abrupt cutoff (fringes fall back very quickly when turing off). |
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| + | Stability was quite alright with the reduced isolation setup as long as nobody touched the table. | ||
| ==== Day 2026-04-01 (k8ik, rahix) ==== | ==== Day 2026-04-01 (k8ik, rahix) ==== | ||
| Set up the interferometer experiment again, but with " | Set up the interferometer experiment again, but with " | ||