Reconfigurable optical add/drop multiplexing device for enabling totally inresistant colorless

Abstract

The present invention provides a reconfigurable optical add/drop multiplexing device for enabling a totally inresistant colorless, wherein a dropping unit is configured to separate multi-wavelength optical signals which are among directionX and are broadcast inputted in a circuit direction, switch the multi-wavelength optical signals among the directionX to any corresponding output port through multiple N×N optical switches, and send the optical signals to a corresponding Receiver (RX) after combining the received optical signals by a corresponding K×1 coupler/optical switch; an adding unit is configured to broadcast the optical signals sent by a Transmitter (TX) to the multiple N×N optical switches through N 1×K couplers/optical switches, switch the optical signals to any corresponding output port by each optical switch, and output the corresponding optical signals in the directionX to the circuit direction after the optical signals are implemented with optical multiplexing; wherein, X is an integer which is greater than or equal to 2, and K and N are both integers. The present invention can enable the totally inresistant colorless in adding and dropping units.