First Demonstration on the Non-transparency of PPLN and Its Potential Application of CSRZ-to-RZ Format Conversion

We report the experimental observation on the transparency and non-transparency aspects of PPLN by using NRZ-DPSK, RZ-DPSK, CSRZ-DPSK, and CSRZ signals. Potential non-transparent applications of 40 Gb/s tunable and multicasting CSRZ-to-RZ format conversions are experimentally demonstrated.