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Polarization multiplexing technique doubles the data rate even using the traditional modulation formats. A novel scheme of polarization stabilization method is studied in this paper. Which is independent of the transmission data rate or bit rate.
Polarization mode dispersion (PMD) monitoring can be used for polarization stabilization and PMD compensation. A scheme of digital signal processor (DSP) based high precision real-time inline PMD monitoring is designed and implemented. Experiment was made and demonstrated significant improvement. The response time is 1 μs and the accurate degree is 1%.
Polarization mode dispersion (PMD) causes time and channel dependent pulse distortions in high-speed optical fiber communication systems and limits their transmission capacity. We designed a low power-consume DSP-based integrated control system using the particle swarm optimization (PSO) algorithm to complete first-order PMD and second-order PMD compensation. The experiment results showed that the...
An universal digital signal processing (DSP) application for adaptive polarization mode compensation (PMD) compensation was demonstrated in optical transmission systems. In high-speed optical fiber communication systems, it is important to compensate the PMD effectively due to the time-varying and statistical properties of PMD. We designed a low power-consume DSP-based integrated control system to...
Polarization mode dispersion (PMD) causes time and channel dependent pulse distortions in high-speed optical fiber communication systems and limits their transmission capacity. This paper describes an adaptive PMD monitoring and compensation scheme. A PMD online monitoring unit was designed and implemented. An asynchronous mechanism of high speed analog to digital conversion was proposed and realized...
This paper demonstrates a universal digital signal processing (DSP) application for adaptive polarization mode compensation (PMD) compensation in optical transmission systems. It is significant and challenging to establish an effective logic control compensator due to the time-varying and statistical properties of PMD, especially in high-speed optical fiber communication systems. We designed a low...
A high speed polarization monitoring unit for adaptive PMD compensation is designed and implemented. The experiment results show that it saves much polarization monitoring time and makes the PMD compensation work effectively.
We reports an experiment of endless PMD compensation in 25-Gb/s NRZ-DQPSK system using a DSP based PMD compensator. The control algorithm used is a modified particle Swarm Optimization. The PMD compensator can track the average SOP variation of 65 rad/s without any lost of optimum tracking.
This paper describes implementation of a universal digital signal processing (DSP) for adaptive polarization mode compensation (PMD) in optical fiber communication systems. PMD is one of the most difficult issues in implementing high-speed optical communication systems with bit rates of 10 Gb/s or higher. Because PMD possesses the time-varying and statistical properties, to establish an effective...
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