VPItoolkit™ DSP Library contains an extensive collection of lab-proven digital signal processing algorithms. It is available as a pluggable toolkit to VPItransmissionMaker Optical Systems and VPIlabExpert. The VPItoolkit DSP Library supports a wide range of modulation formats such as (DP) BPSK, (DP) QPSK, PS QPSK, (DP) 16QAM, 4D set partitioning.