I have a pretty quick question. I am working with a laser diode with an integrated photodiode. The pin configuration has a common cathode connection for bother the laser and photodiode. I want to power the laser diode but also operate the photodiode in photovoltaic mode as you get better response, however I am unsure if this is possible.
My example circuit is shown below, if I apply a voltage across the laser diode and then for sake of argument connect a resistor unto ground across the photodiode for a probe to measure the voltage induced from the photodiode current. Will the Current source, which is a lab supply with current limit, not provide an additional unaccounted for voltage across both the photodiode and resistor?
Is there a circuit setup that will allow me to operate the photodiode in photovoltaic mode without voltage/current being supplied to the laser diode affecting it?