We experimentally investigate the first-order polarization-mode dispersion (PMD) tolerance of two polarization-multiplexed (POLMUX) RZ-DQPSK signals at overall 40 Gb/s. The polarization demultiplexing is enabled by an automatic endless polarization stabilizer. Time-interleaving the two orthogonally polarized RZ-DQPSK signals minimizes the crosstalk due to the non-ideal polarization stabilization, while it represents the worst-case for the PMD-induced crosstalk. Bit-error rate measurements are performed both in bak-to-back and after 25-km standard single-mode fiber.
Measurement of PMD tolerance in 40-Gb/s polarization-multiplexed RZ-DQPSK
BOFFI, PIERPAOLO;FERRARIO, MADDALENA;MARAZZI, LUCIA;MARTELLI, PAOLO;PAROLARI, PAOLA;RIGHETTI, ALDO;SIANO, ROCCO;MARTINELLI, MARIO
2008-01-01
Abstract
We experimentally investigate the first-order polarization-mode dispersion (PMD) tolerance of two polarization-multiplexed (POLMUX) RZ-DQPSK signals at overall 40 Gb/s. The polarization demultiplexing is enabled by an automatic endless polarization stabilizer. Time-interleaving the two orthogonally polarized RZ-DQPSK signals minimizes the crosstalk due to the non-ideal polarization stabilization, while it represents the worst-case for the PMD-induced crosstalk. Bit-error rate measurements are performed both in bak-to-back and after 25-km standard single-mode fiber.File in questo prodotto:
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OpticsExpress_ vol16_2008.pdf
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