Patent ID: 9094148
Filing Date: 2015-07-28
Classification: H04B,H04J

Abstract:
1. An adaptive optical amplifier system with a plurality of amplification stages controlled by a centralized controller in communication with amplifier controllers, each amplification stage comprising: a spectrum measuring unit for selecting a portion of an input WDM signal and measuring a power profile; a flexible grid wavelength blocker (WB) split from the spectrum measuring unit for dispersing the optical signal 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 having non-uniform, predetermined spectral width that is 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; an amplifier controller for controlling settings of the wavelength blocker and amplifier, receiving and processing spectrum measurement results from the spectrum measuring unit, wherein the optical amplifier is configured according to setting instruction from the amplifier controller and the settings include a power level of each amplification stage, and an attenuation level providing tilt equalization, and wherein a total output power from the optical amplifier is distributed among the WDM channels.