Low cost multi-impairment monitoring technique for 43 Gbps DPSK and 86 Gbps DP-DPSK using delay tap asynchronous sampling method

We present a novel low cost method of multi-impairment monitoring for 43 Gbps DPSK using delay tap asynchronous sampling with 12 GHz receivers. This technique is also demonstrated for 86 Gbps DP-DPSK and therefore, is potentially applicable to 112 Gbps DP-QPSK.