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We present the two-stage optical phase conjugation (OPC) to compensate both dispersion and Kerr nonlinearities in a long-haul 4×56 Gbit/s RZ-DQPSK DWDM transmission system. The two-stage OPC is realized to reduce the amount of unwanted products that are produced through nonlinear mixing processes in third-order nonlinear media. We have investigated the benefit of the two-stage OPC using highly nonlinear...
We present the nonlinearity compensation scheme using optical phase conjugation (OPC) for dense wavelength division multiplexing (DWDM) transmission systems. The OPC is realized by four-wave mixing process in a dispersion engineered chalcogenide waveguide. Performance of the 4×56 Gbit/s DQPSK system in nonlinear transmission scheme has been investigated. Simulated results also indicate that this method...
We present the dispersion compensation scheme using optical phase conjugation (OPC) for long-haul transmission systems. The OPC is realized by four-wave mixing process in a dispersion engineered chalcogenide waveguide. Performance of the 1600-km transmission system using different modulation formats at 40 Gbaud has been investigated. Simulated results also indicate that this method is more efficient...
Objectives. This study sought to examine the effects of long-term estrogen therapy on vascular function in male to female transsexuals and to compare the findings with those observed in men and premenopausal women.Background. Gender differences in coronary artery disease have largely been attributed to the beneficial effects of estrogen on vascular function and plasma lipids in women. However, the...
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