摘要
We proposed and demonstrated an all-optical format conversion fi：om return-to-zero quadrature phase shift keying （RZ-QPSK） to non-return-to-zero QPSK （NRZ-QPSK） at 40 Gb/s using a half bit delay inter- ferometer （DI）. Due to the constructive interference in the DI, the format conversion was achieved with the phase information preserved. Q penalty for the format conversion was less than 1.8 dB for I and Q data.
We proposed and demonstrated an all-optical format conversion fi：om return-to-zero quadrature phase shift keying （RZ-QPSK） to non-return-to-zero QPSK （NRZ-QPSK） at 40 Gb/s using a half bit delay inter- ferometer （DI）. Due to the constructive interference in the DI, the format conversion was achieved with the phase information preserved. Q penalty for the format conversion was less than 1.8 dB for I and Q data.
