A novel scheme of power equalization and power management in WDM all-optical networks

In this letter, a novel scheme for module implementation of power equalizat ion in wavelength-division-multiplexed (WDM) all-optical networks is propos ed. The power equalization and the power amplification are united-into one module and the node isolation principle is applied. The simulation shows th at ours is more explicit and efficient than the traditional schemes. The la rger number of cascaded nodes is permitted and the system performance (sign al-to-noise ratio) can be kept without deterioration. Consequently, a feasi ble novel solution to power management in WDM ail-optical networks is prese nted.