As shown in the scheme, the laser Agilent 8164A processes the internal modulated waves to the on-chip diode, and the output signal through the RF pad on the chip will be processed to the oscilloscope. The diode works under input from the DC supply, which connects the DC Pad and Ground Pad on the chip. Oscilloscope connects to the RF Pad and ground Pad for receiving the output signal.

Q1: here we will have the ground of the oscilloscope, DC power supply, and on-chip diode connected together. Will it be safe? Can Oscilloscope correctly receive the output?

Q2: Is there any damage possibility that I connect them like this? Such as a potential back-reflection from one of the tools which will possibly cause damage.