Adaptive Optical Amplifier for WDM Systems

摘要

An optical amplifier that uses software-defined optical networking (SDON) technology, with a centralized controller and flexible physical hardware (the adaptive amplifier here) to optimize the power distribution among different WDM channels in the amplifier. It considers the detailed information for each channel through the information from centralized controller. It is suitable for both single line rate and mixed line rate system, and is suitable for a wavelength division multiplexing WDM system with the same signal type or different signal types.

主权项

1. An adaptive optical amplifier system comprising:
a spectrum measuring unit for selecting a portion of an input WDM signal and measuring a power profile; a flexible grid wavelength blocker for dispersing the optical signal from the spectrum measuring unit into different channels and selectively turning each channel on/off or attenuate the power level and then combining the resulting spectral components of the channels back into a single WDM signal; each individual channel being without uniform, predetermined spectral width and capable of having different widths that can be changed dynamically responsive to traffic conditions from a network linked to the adaptive optical amplifier system; an amplifier for amplifying output from the wavelength blocker; a amplifier controller for controlling settings of the wavelength blocker and amplifier, receiving or processing spectrum measurement results from the spectrum measuring unit; and a centralized controller in communication with the amplifier controller.