Photodiode applys for channel power monitoring in DWDM system, OLP, ODAM, EDFA, etc. Bi-directional Integrated Tap Photodiode (PM tap PD)The Integrated Tap Power Detector (TAPD) integrates the functionality of an optical coupler and a photodiode for optical network's power detection. It applys for channel power monitoring in DWDM system, in-line optical network switching protection monitoring ( ...