Recent content by hugostensson

I found the schematic from a paper about measurements. The laser diode will send a laser beam against the moving object. When the beam hits the surface the backscattered light will be mixed up in the laser diode cavity and this will make that the signal going from the Photo diode will contain...

Here is a picture of the schematic.

Hello everyone! I'm new to this forum and I'm excited to be here!. I currently working on to make a self-mixing laser diode vibrometer to measure sound from a loudspeaker. I've a schematic over a setup but I have some questions about it. 1. Where should I make the output measurements from...