I bought a adl-65074tl-1 laser diode, I am trying to drive it and to read the feedback of the monitor photodiode with an oscilloscope. I am using a laboratory DC power supply and a multimeter for setting the voltage value of the diode to the 2.2 V (Iop). After some trial and error, I built this schematic, I've add the resistor and the condenser for reducing volage spikes, but the source is quite stable.
I don't understand how to read the current or the voltage from the monitor photodiode that from the datasheet should be on the pin 3.
The voltmeter symbol should be replace with an amperemeter. Eventually, I've discovered that my multimeter had a blown fuse. Replacing it I was able to read the current.