Frequency behaviors of third order intercept point for a waveguide photodiode using three laser two-tone setup

A three laser two tone setup removes unwanted nonlinearities from the third order intercept point (IP3) measurement. A high frequency photodetector with an IP3 upwards of 30 dBm will be analyzed up to 18 GHz using the new setup and with the circuit model used in Jiang (2000).