New optical compensator for higher-order polarization mode dispersion in optical fiber channels

Abstract

Abstract. We propose a new optical compensator for both first-order and higher-order polarization mode dispersion ͑PMD͒ effects in an optical fiber channel. The compensation scheme needs just one more polarization controller and one more variable differential group delay ͑DGD͒ element than first-order optical compensators with adjustable DGD elements. And the control algorithm for this compensator is easier and more stable than that for the typical higher-order optical polarization mode dispersion compensators. By an advised control method, the proposed compensator can always have better performance than first-order optical compensators. Numerical results are given to prove the efficiency of the proposed compensation scheme.

Higher-order optical polarization mode dispersion compensator evaluation using Markov chain Monte Carlo simulation

“…Compensating the PSP depolarization within certain limited bandwidth around the carrier frequency can mitigate the higher-order PMD degrading effects effectively. 2,8 Based on this theory, we proposed the new higher-order optical PMD compensator, which requires a simpler control algorithm than that for the typical higherorder optical PMD compensators and can always have better performance than first-order optical compensators.2 The transmission matrix of the proposed higher-order optical compensator is described in detail in Ref. 2.…”

“…2 The transmission matrix of the proposed higher-order optical compensator is described in detail in Ref. 2.…”

“…1 Recently, we proposed a new higher-order optical PMD compensator in Ref. 2 where the outage probability ͑the probability of the PMD-induced bit error rate ͑BER͒ exceeding the allowed value 10 −12 ͒ is used to evaluate the efficiency of our proposed compensator. Using standard Monte Carlo ͑MC͒ simulation to produce the optical fiber channel samples, 2 the outage probability of the compensated systems is estimated down to less than 10 −3 .…”

“…2, while the optical fiber channel samples and the BER samples are generated by MCMC as suggested earlier in this letter. The parameter M is 50 in our simulations.…”

“…2 where the outage probability ͑the probability of the PMD-induced bit error rate ͑BER͒ exceeding the allowed value 10 −12 ͒ is used to evaluate the efficiency of our proposed compensator. Using standard Monte Carlo ͑MC͒ simulation to produce the optical fiber channel samples, 2 the outage probability of the compensated systems is estimated down to less than 10 −3 . In practical system design, one demands that the PMDinduced outage probability is typically 10 −6 or less.…”