A lossy 6 dB directional coupler is matched so that there is no reflection at any of the ports. The insertion loss (considering the through path) is 2dB. If 1mW is input to the directional coupler,...

A lossy 6 dB directional coupler is matched so that there is no reflection at any of the ports. The insertion loss (considering the through path) is 2dB. If 1mW is input to the directional coupler, what is the power in microwatts dissipated in the directional coupler? Ignore power leaving the isolated port.